Hilary Duff's sister is Haylie Duff.
Haylie is her older sister, and they've shared the spotlight in entertainment for years.

Who is Haylie Duff?

Haylie Katherine Duff, born February 19, 1985, in Houston, Texas, is an American actress, singer, author, and entrepreneur.

She's best known for roles in films like Napoleon Dynamite (2004) and Material Girls (2006), where she starred alongside Hilary as sisters.

Haylie has also worked as a television host, songwriter, and fashion designer, building a career that often intersected with her sister's during their Disney Channel days.

Their Shared Career Highlights

  • Haylie debuted in minor roles like True Women (1997) and guest spots on Lizzie McGuire , Hilary's breakout show.
  • The sisters collaborated on the 2004 cover song "Our Lips Are Sealed" and its music video, plus the movie Material Girls as wealthy heiress siblings.
  • Both trained in ballet early on, with Haylie supporting Hilary's shift to acting around age six.

Their mom, Susan Duff, managed Hilary and produced films like A Cinderella Story (2004).

Family Background

The Duff sisters grew up in Houston with parents Susan (a former homemaker turned producer) and Robert Duff (convenience store chain partner).

Haylie lives in Austin, Texas, with partner Matt Rosenberg and daughters Ryan and Lulu.

Hilary has frequently credited Haylie's influence on her early career, calling their bond a key part of their Hollywood journey.

Rumors of a Feud

Speculation has swirled about tension between the sisters. Fans noticed they haven't been photographed together since 2020 and rarely tag each other on social media.

Theories point to political differences—Haylie's conservative leanings and Texas move versus Hilary's more liberal views—fueled by Reddit chatter and YouTube gossip.

In February 2026, while promoting her album luck… or something , Hilary addressed the rumored rift in a Glamour interview and Etalk chat, hinting at songs inspired by their evolving relationship, though no full feud was confirmed.

Despite rumors, they still follow each other on Instagram, and their history suggests a strong sibling tie amid busy lives.

Recent Updates (as of Feb 2026)

Hilary's latest album promotion reignited interest in their dynamic, with outlets like People recapping their kid-actor days.

Haylie stays lower-profile, focusing on family in Austin, while Hilary thrives in music and acting.

No major public appearances together lately, but their shared past keeps fans rooting for a collab comeback.

TL;DR: Haylie Duff is Hilary's talented older sister and longtime collaborator; recent distance sparked feud rumors, but Hilary's 2026 comments suggest it's more about life's changes than drama.

Information gathered from public forums or data available on the internet and portrayed here.