Leroy David Baca is a former American law enforcement officer and convicted felon who served as the 30th Sheriff of Los Angeles County, California from 1998 to 2014. In 2017, he was convicted of felony obstruction of justice and lying to the FBI.

Sherman Block was the 29th Sheriff of Los Angeles County, California from January 1982 until his death. He was preceded by Peter Pitchess and succeeded by Lee Baca.