Leonis C. Malburg (April 4, 1929 – November 1, 2017) was a former mayor of Vernon, California, and the grandson of the city's co-founder John B. (J.B.) Leonis, a nephew of Miguel Leonis. In 2009 he and his wife Dominica Malburg were convicted of conspiracy, perjury, and voter fraud. Leonis's son, John Malburg, was sent to prison for child molestation of boys in 2009. The offenses were discovered during the same family voter fraud investigation.