Grier was married to Maritza Rivera and divorced in 1997. In July 2007, he married Christine Y. Kim, an associate curator of the Los Angeles County Museum of Art. She gave birth to their daughter, Luisa Danbi Grier-Kim on January 10, 2008, at Cedars-Sinai Medical Center, in Los Angeles. On June 9, 2009, according to TMZ, Kim filed for divorce, citing irreconcilable differences.