John Ravenscroft, also known as Giovanni Ravenscroft and Giovanni Rederi, was an English violinist and composer of the Baroque era, who moved to Rome. He was possibly a pupil of Arcangelo Corelli, by whom he was strongly influenced, and around the middle of the 18th century some of Ravenscroft's trio sonatas were misattributed to Corelli. He is not to be confused with the English wait John Ravenscroft.