Ella Parker was a fanzine editor from the UK.
She began publishing her award winning fanzine Orion in 1959, after the previous editor, Paul Enever, handed over the reins to her. In 1960, it won the Skyrack Readers Fan Poll for Best Fanzine of the year. In 1961 it placed second, beaten by Parker's most recent publication, The ATom Anthology. After the 29th issue was released, Parker ceased publication of Orion in 1962.
In 1960, Parker began hosting an open house Friday night get together at her flat, nicknamed "The Penitentiary" in West Kilburn, London, for British Science Fiction Association members, until late 1964. She also edited the BSFA Newsletter during this time.