Family
- father Antony Kidman: Australian; involved with labor movement and progressive causes
- mother Janelle Kidman: Australian; edits her husband's books; involved with feminist causes; was diagnosed with breast cancer in 1984
- sister Antonia Kidman Hawley: Born c. 1971
- daughter Isabella Jane Kidman Cruise: Born Dec. 22, 1992 in Florida; adopted by Kidman and Cruise in January 1993
- son Connor Anthony Cruise: African-American; born on Jan. 17, 1995 in Florida; adopted with Cruise on Feb. 5, 2001
- daughter Sunday Rose Kidman Urban: Born July 7, 2008; father, Keith Urban
Companions
- Companion Russell Crowe: Romantically linked in October 2002; was later reported that the source who claim to have witnessed Kidman and Crowe kissing, dancing, etc., admitted that he lied; both deny they were ever romantically involved
- husband Tom Cruise: Born July 3, 1962; met while filming "Days of Thunder" (1990); married on Dec. 24, 1990 in Telluride, Colorado; co-starred in "Far and Away" (1992) and "Eyes Wide Shut" (1999); announced separation in February 2001; divorce finalized on Aug. 8, 2001
- Companion Tobey Maguire: Rumored to have briefly dated in 2002; eight years younger than Kidman
- Companion Steve Bing: Rumored to have briefly dated in 2004/05
- Companion Marcus Graham: Australian; had relationship in the late 1980s
- husband Keith Urban: Met in January 2005 at a gala dinner in LA honoring noted Australians; rumors that they were dating began in July 2005; announced engagement in May 2006; married June 25, 2006 in Sydney, Australia
- Companion QTip: Rumored to have briefly dated in 2003; introduced by Leonardo DiCaprio
- Companion Lenny Kravitz: Began dating early 2003; split in January 2004, when Kravitz was photographed with another woman; rumored to have been briefly engaged
- Marcus Graham: Australian; had relationship in the late 1980s
- Russell Crowe: rumored to be dating as of October 2002; was later reported that the source who claim to have witnessed Kidman and Crowe kissing, dancing, etc admitted that he lied; Crowe later became engaged to girlfriend Danielle Spencer in December 2002
- Tobey Maguire: 8 years younger than Kidman; reportedly dating since March 2002
- husband Tom Cruise: born on July 3, 1962; married on December 24, 1990 in Telluride, Colorado; co-starred in "Days of Thunder" (1990), "Far and Away" (1992) and "Eyes Wide Shut" (1999); announced separation in February 2001; Cruise filed for divorce on February 7, 2001; divorce finalized on August 8, 2001
- Q-tip: rumored to be dating as of January 2003; reportedly introduced by Leonardo DiCaprio
- Companion Eric Watson: Owner of the "Warriors" rugby league club in New Zealand; rumored to have briefly dated in 2004
