78 Sister-in-Law Quotes for the Bonus Sister in Your Life

These sister-in-law quotes really express the special bond between a woman and the woman who marries her brother (or sister).

A sister-in-law can be a gift for everyone who ever wanted a sister, but had only brothers.

If you are looking for the perfect sister-in-law quotes to celebrate your sister-in-law’s birthday or another special occasion you have come to the right place!

According to a study by Psychology Today, sisters-in-law rank second only to mothers as the most influential female presence in one’s life.

Furthermore, research shows that having a good relationship with your sister-in-law can lead to greater marital satisfaction and overall happiness.

She might not be related to you by blood, but you can still express how thankful you are she joined your family.

These inspirational quotes about the special bond between sisters will move her for sure.

Sisters are a blessing, whether they are by blood or marriage.

Keep reading through these sister-in-law quotes to find the one that expresses your feelings for your sibling’s spouse perfectly!

If you like this article, we suggest you explore our most popular quotes article, a list of short inspirational quotes for daily encouragement. 

Check out more inspirational quotes on our motivational quotes category page.

Sister-in-law quotes from unknown origins

A study by the University of California, Berkeley, found that having a close relationship with your sister-in-law can decrease feelings of loneliness and increase a sense of social connectedness.

Reading Sister-in-Law Quotes can help to create a sense of emotional closeness between two people who may not have grown up together or shared common experiences.

1. “Sister-in-law by chance, friends by choice.” — Unknown

sister-in-law quotes from unknown origins

You will also enjoy our article on funny sister quotes.

2. “You are more than a sister-in-law, you are my sister.” — Unknown

sister-in-law quotes about you are more than a sister in law, you are my sister

You will also enjoy our article on sibling quotes.

3. “Sisters-in-law are like the other women in a relationship.” — Unknown

sister-in-law quotes on relationship

4. “On the day of the wedding, our families will blend, you’ll be my sister and also my friend.” — Unknown

sister-in-law quotes on the day of the wedding

5. “Sister-in-law—a lifetime supply of love and support traditionally given to a bride on her wedding day.” — Unknown

sister-in-law quotes on lifetime supply of love

You will also enjoy our article on mother daughter quotes.

6. “Your sister isn’t always your blood relation, sometimes it’s that close friend who understands you, loves you, and has always got your back.” — Unknown

7. “Our friendship grows, yet stays the same, for sisters-in-law we became. Yet she is so much more, for she has become a sister that I adore.” — Unknown

8. “I am so thankful that you are my sister-in-law. I have learned so much from you and I can honestly say that you are a blessing to our family.” — Unknown

9. “Even though we live miles apart, you will always be dear to my heart. So, to you, a special love I send, to not just my sister-in-law, but also my friend.” — Unknown

10. “Sister-in-Law, you are someone that I can talk to, someone I can lean on, and someone that understands me. You are much more than just my brother’s wife, you are my friend.” — Unknown

You will also enjoy our article on sister quotes.

Amusing sister-in-law quotes

11. “Happiness is annoying your sister-in-law.” — Unknown

amusing sister-in-law quotes

12. “The greatest gift my brother ever gave me was you.” — Unknown

sister-in-law quotes about the greatest gift my brother ever gave me was you

You will also enjoy our article on father-daughter-quotes.

13. “If the marriage were valid, she’d be your sister-in-law.” — Cassandra Clare

sister-in-law quotes about marriage were valid

14. “In the cookies of life, sisters-in-law are chocolate chips.” — Unknown

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sister-in-law quotes about cookies of life

15. “I am writing a book on my sister in law which is called jealous.” — Unknown

sister-in-law quotes about writing a book on my sister in law

16. “If you want to know how old a woman is … ask her sister in law.” — E.W. Howe

sister-in-law quotes to know how old a woman is

17. “I sang a song at my sister’s wedding. My mother forced me into that, too. But that one felt all right.” — Adam Sandler

18. “I smile because you’re my sister-in-law, and I laugh because there’s nothing I can do about it!” — Unknown

sister-in-law quotes on nothing I can do about it

19. “I started walking at night with my sister-in-law which has been amazing. It really does something for you.” — Ashley Scott

sister-in-law quotes about something for you

20. “Happiness is going shopping with my sister-in-law. She’s got the traits of my husband that I like, with the added bonus of her love of shopping!” — Unknown

Sentimental sister-in-law quotes

21. “Sisters-in-laws are a special kind of family.” — Unknown

sentimental sister-in-law quotes

22. “By luck we became sisters, by love we became friends.” — Unknown

sister-in-law quotes about luck

23. “If I didn’t have you as a sister-in-law, I’d choose you as a friend.” — Unknown

sister-in-law quotes to choosing a friend

24. “I’m so glad that I have a wonderful sister-in-law like you in my life.” — Unknown

wonderful sister-in-law quotes

25. “When I think of all the blessings in my life, my sister in law is right there at the very top of the list!” — Unknown

Blessing sister-in-law quotes

26. “They can call you sister in law or my brother’s wife it doesn’t matter you’re a special person in my life you’re like my sister.” — Unknown

27. “Having a sister-in-law like you makes life so much easier. It’s like I didn’t just gain a partner in life, but I also got a new sister that I can talk to about anything!” — Unknown

28. “No one relationship is without its share of problems but with you, I’ve seen a sister ready to form a bond with me with all trueness of heart. Thanks, dear sister in law.” — Unknown

29. “Sister-in-Law, you are someone that I can talk to, someone I can lean on, and someone that understands me. You are much more than just my brother’s wife, you are my friend.” — Unknown

30. “To lose a brother is to lose someone with whom you can share the experience of growing old, who is supposed to bring you a sister-in-law and nieces and nephews, creatures who people the tree of your life and give it new branches.” — Yann Martel

Appreciative sister-in-law quotes

31. “You’re the best sister-in-law, and I really love you!” — Unknown

Appreciative sister-in-law quotes

32. “A sister-in-law can mean so much in so little time.” — Unknown

sister-in-law quotes about a sister in law can mean so much in so little time

33. “Having a sister-in-law means you always have a backup.” — Unknown

sister-in-law quotes on having a sister

34. “Having a bond with your sister-in-law is something money can’t buy.” — Unknown

having a bond sister-in-law quotes

35. “I mean, I don’t really understand why you picked my brother, but I’m glad you did.” — Unknown

36. “The only thing better than having you as my sister-in-law is my children having you as their aunt.” — Unknown

37. “I don’t know who is luckier, my brother because you are his wife or me because you are my sister-in-law.” — Unknown

38. “Sister-in-law—the one who can get mad at only for a short period because you have important stuff to tell them.” — Unknown

39. “Sisters-in-law are like muffins in a bad day. They make you all warm and fluffy inside, chasing the bad vibes away.” — Unknown

40. “I like your annoying behavior, I enjoy your silly tantrums, and I get amused by your crazy antics all because you are my cute sister-in-law.” — Unknown

Sister-in-law quotes about sisterhood

41. “There is no place for secrets in sisterhood.” — Erin Forbes

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sister-in-law quotes about sisterhood

42. “Sisters make the best friends in the world.” — Marilyn Monroe

sister-in-law quotes about sisters make the best friends in the world

43. “Sisters are different flowers from the same garden.” — Unknown

44. “Sister to sister we will always be, a couple of nuts off the family tree.” — Unknown

45. “The only person I lie to is my little sister, when I steal her clothes.” — Kendall Jenner

sister-in-law quotes about the only person I lie to is my little sister

46. “Is solace anywhere more comforting than that in the arms of a sister?” — Alice Walker

sister-in-law quotes from Alice Walker

47. “Sisters function as safety nets in a chaotic world simply by being there for each other.” — Carol Saline

sister-in-law quotes about sisters fuction as safety nets in a chaotic world

48. “Don’t talk about my sister; don’t play with me about my sister. If you do, you’ll see another side of me.” — Beyoncé

sister-in-law quotes on don't tal about my sister

49. “Having a sister is like having a best friend you can’t get rid of. You know whatever you do, they’ll still be there.” — Amy Li

Sister-in-Law Quotes for an Extended Family

50. “Acquaintances were always on their best behavior, but sisters loved each other enough to say anything.” — Lauren Weisberger

Sister-in-Law Quotes for an Extended Family

51. “My sister-in-law believes that few narratives are so tightly constructed that you can’t skip boring bits and still keep abreast of what’s going on.” — Arthur Smith

52. “The only siblings I have are half-siblings. My nuclear family would have been an extra-suffocating threesome. Instead, I have an interesting brother and sister, in-laws, and darling nephews.” — Jane Smiley

53. “And not only my own brothers and sisters agreed so but my brothers and sisters in law; and their children, although but young, had the like agreeable natures and affectionate dispositions.” — Margaret Cavendish

54. “My sister-in-law found a real surprise in her stockings – my brother.” — Milton Berle

55. “My grandfather was a teacher, my grandmother on my mom’s side, four of my aunts, my sister-in-law, my best friend.” — Michelle Rhee.

56. “Well, I’ve seen a bunch of acupuncturists and one of my sisters-in-law is an herbalist. So, I know a lot about alternative medicine. I don’t know a lot about the practice but I know about the world.” — Tim Daly

57. “This show has shown me how to throw a punch. But watching my future sister-in-law go through breast cancer has also shown me how to take one.” — Charlotte Ross

58. “Your relationship with your sister-in-law is hingeing on your brother’s – or your sister-in-law’s – ability to keep that relationship together.” — Justin Hartley

59. “My sister-in-law is so skinny that she has a striped dress with only one stripe.” — Phyllis Diller

60. “My sister-in-law is a painter, and I’ll say, how long did it take you to paint that painting. She’ll say, It took me maybe three days, but it took me all my life to get the skills to paint that painting.” — Anthony Doerr

Sister-in-Law Quotes on The Unique Relationship

61. “You keep your past by having sisters. As you get older, they’re the only ones who don’t get bored if you talk about your memories.” ― Deborah Moggach

62. “Sweet is the voice of a sister in the season of sorrow.” ― Benjamin Disraeli

63. “It is natural not to care about a sister certainly not when she is four years older and grinds her teeth at night.” ― Gertrude Stein

64. “What are sisters for if not to point out the things the rest of the world is too polite to mention.” ― Claire Cook

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65. “Airport Cars UK are always helpful and on time when we go on holiday. They have also done themselves proud with the executive people carriers at my sister-in-law’s wedding.” ― Shane Richie

66. “If your sister is in a tearing hurry to go out and cannot catch your eye, she’s wearing your best sweater.” ― Pam Brown

67. “I was in fashion school, my brother has a law background, and my sister-in-law had worked in production, but none of us had a proper fashion business education.” ― Alexander Wang

68. Sister is probably the most competitive relationship within the family, but once the sisters are grown, it becomes the strongest relationship.” ― Margaret Mead

69. “To steal from a brother or sister is evil. To not steal from the institutions that are the pillars of the Pig Empire is equally immoral.” — Abbie Hoffman

70. A sister can be seen as someone who is both ourselves and very much not ourselves – a special kind of double.” ― Toni Morrison

71. “Over the years my dear brother made some bad choices. But his pick for a wife was a great one, you are a keeper, a winner! Love you sis in law.” — Kate Summers

72. “Sister in laws like you make me realize that my brother does have good taste. Many Happy Returns!” — Ann Lynch

73. “The years have been good to you my sister in law. I hope I have your energy, your spark, and your enthusiasm when I am your age. You are the best!” — Kate Summers

74. “Our family has been blessed with a sister in law like you. You are like a sister, you are a great aunt, and a loving daughter all wrapped up in one. We want nothing but the best for you!” — Theodore W. Higginsworth

75. “A sister I never had, but now I have a sister in law who is the best sister I could have ever dreamed of. Thank you and many happy days in the coming year.” — A. Lynch

76. “Every family should have a woman like you as a sister in law – if they did, they would get along better.” — Byron Pulsifer

77. “So many don’t like their in laws but we lucked out the day you married into our family. And on special days like today, we just want you to know you complete our family in the most positive way.” — Byron Pulsifer

78. “We could not have wished for a better sister in law than you. Thank you for being who you are.” — Kate Summers

Which of these sister-in-law quotes is your favorite?

Your sister-in-law will not only be someone special to you.

She will also be an aunt to your children if you choose to have any.

And aunts are really the best thing ever!

She will also be like another daughter to your parents.

If she loves your sibling and brings joy to your life then let her know.

If you don’t really get along with your sister-in-law maybe these sister-in-law quotes and sayings will inspire you to build a better relationship with her.

After all, she is the person your spouse has promised to love and cherish forever.

Do you have a sister-in-law?

What are some of your fondest memories or experiences together?

Let us know in the comment section below!

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