Narda Onyx (born 20 December 1931, died 18 March 1991) is an Estonian-born naturalized American film and television actress.
Narda Onyx, at the age of eleven, escaped with her family through Soviet lines, and deceived her would-be German captors near the end of World War II. After making their way to Allied-occupied Bonn, they were able to find their way to America.
Onyx appeared in dozens of supporting roles on television and in motion pictures during the 1950s and 1960s. Shows in which she appeared include The Beverly Hillbillies, Have Gun - Will Travel, and The Man from U.N.C.L.E. In addition, she played Gretl Braun in Hitler (1962) and Maria Frankenstein in Jesse James Meets Frankenstein's Daughter (1966).