Gertrude Bambrick (August 24, 1897 – January 10, 1974) was an American actress of the silent era.
Her first marriage to early film director Marshall Neilan ended in divorce and resulted in one child, Marshall Neilan Jr, who later became a successful film editor.
Neilan fell in love with Bambrick while working in New York City in 1914, and at the time he was a rising star in film direction.
Bambrick divorced Neilan in 1921 after discovering he was involved in an affair with early film actress Blanche Sweet.
Neilan went on to marry Sweet, and they divorced in 1929, when his career failed and he was in financial ruin.