Lucie Arnaz (born Lucy Desiree Arnaz, July 17, 1951 in Los Angeles, California) is an American actress. She is the daughter of actors Lucille Ball and Desi Arnaz, and is the sister of actor Desi Arnaz, Jr.
Arnaz, along with her brother, made her first acting appearance in a continuing role as Lucy's daughter Kim, in the television series Here's Lucy. She returned to television in the 1975 production of Who Killed the Black Dahlia? playing murder victim Elizabeth Short. In 1980 she played the lead opposite Neil Diamond in the remake of The Jazz Singer. The film was considered a failure and did nothing to further Arnaz's career aspirations, however she has continued to sporadically appear in films and on television since then.
Arnaz is married to the actor Laurence Luckinbill.