Family
- son Ryder Russell Robinson: Born Jan. 7, 2004; father is former Black Crowes frontman Chris Robinson
- grandfather Edward Rutledge Hawn:
- grandmother Laura Hawn: Appeared in small roles in Goldie Hawn's films "Swing Shift" (1984) and "Deceived" (1991)
- father William Louis Hudson: Eldest of the musical comedy trio The Hudson Brothers; married Hawn in 1976; divorced Hawn in 1980; married actor Cindy Williams in 1982; rarely had contact with his daughter
- mother Goldie Hawn: Born Nov. 21, 1945
- step-father Kurt Russell: Began relationahip with Hawn in 1982; father of Boston and Wyatt Russell; kate Hudson considers Russell and Hawn her parents
- brother Oliver Hudson: Born Sep. 7, 1976
- step-brother Boston Russell: Born c. 1980; son of Kurt Russell and Season Hubley; raised by Hawn and Russell along with Kate Hudson
- half-brother Wyatt Russell: Born on July 10, 1986; son of Hawn and Kurt Russell
- half-sister Emily Hudson: Daughter of Bill Hudson and Cindy Williams
- half-brother Zachary Hudson: Son of Bill Hudson and Cindy Williams
Companions
- Companion Owen Wilson: Began dating shortly after her split from husband, Chris Robinson in 2006; ended relationship in May 2007 after nine months of dating; dated on and off throughout 2008; no longer together
- Companion Dax Shepard: Dated for several months, after her split from Owen Wilson; ended relationship in October 2007
- Eli Craig: son of actress Sally Field; dated for 18 months; no longer together
- Lenny Kravitz: reportedly dated
- Companion Lance Armstrong: Dated during the Summer of 2008; no longer together
- Companion Alex Rodriguez: Reportedly dating as of June 2009
