Shared family background and parents
Kylie Jenner and Kim Kardashian are related as sisters, both born to Kris Jenner (née Kardashian) and Caitlyn Jenner, then known as Bruce Jenner. They are part of the blended Kardashian-Jenner family formed after Kris married Caitlyn in 1991. Kim is from Kris’s prior marriage to Robert Kardashian, while Kylie is the youngest biological child of Kris and Caitlyn. As a result, Kim is Kylie’s older stepsister and also a figure shaped by the same public-family upbringing, with their bond widely documented across reality TV and social media.
Family structure and key relationships
The Kardashian–Jenner family network includes multiple half-siblings and shared parental ties. The table below outlines verified sibling links and parental relations between Kim and Kylie.
| Relation | Details | Source type |
|---|---|---|
| Mother | Kris Jenner (née Kardashian) | Public records, media profiles |
| Father | Caitlyn Jenner (formerly Bruce Jenner) | Public records, media profiles |
| Kim’s relation to Kylie | Older stepsister and mentor figure | Family interviews, TV portrayals |
| Full biological siblings of Kylie | Kendall Jenner | Public records |
| Kim’s children (relevant to extended ties) | North, Saint, Chicago, Psalm | Public records |
Kim and Kylie share one parent (Kris) and were raised together for much of their childhood, which established a close personal and professional relationship.
Kylie Jenner’s background and birth details
Kylie Kristen Jenner was born on 10 August 1997 in Los Angeles, California. She is the youngest daughter of Kris and Caitlyn Jenner. Growing up in the spotlight, she appeared on Keeping Up with the Kardashians from a young age, which laid the foundation for her later career in beauty and business. Her upbringing alongside Kim and Kendall shaped her early exposure to media, branding, and entrepreneurship.
Kim Kardashian’s background and context
Kimberly Noel Kardashian was born on 21 October 1980 in Los Angeles, California. As the daughter of Kris Jenner and the late lawyer Robert Kardashian, she is Kylie’s older stepsister. Kim rose to fame through the same reality series and has since built a long-running public profile in entertainment, business, and advocacy. Her career trajectory intersects with Kylie’s through shared family branding and joint ventures, particularly in beauty and shapewear.
Business and public image connections
Both have leveraged their family fame into business empires, often collaborating or occupying adjacent spaces in beauty and lifestyle. Kylie is known for founding Kylie Cosmetics and later Kylie Skin, while Kim has built Skims and contributed to broader family brand initiatives. Their professional paths interact through family-promotional cycles, product launches, and shared media narratives, yet they maintain distinct market focuses and brand identities.
Key facts at a glance
- Kim and Kylie are stepsisters by virtue of sharing mother Kris Jenner.
- Kylie is the biological daughter of Kris and Caitlyn Jenner, making her Kim’s younger family member.
- They were raised together in the public eye, which shaped a close-knit yet professionally competitive dynamic.
- Both have transitioned from reality TV prominence to billion-dollar personal brands in beauty and apparel.
- Their careers intersect in marketing collaborations, family projects, and shared cultural influence.
Summary of their relationship
Kylie Jenner is the younger stepsister of Kim Kardashian; they share mother Kris Jenner and were raised together in the Kardashian–Jenner household. This familial bond, combined with parallel careers in beauty and branding, positions them as closely related public figures with intertwined yet individual professional trajectories.