John Crosby (died 1724) was an English stage actor of the Restoration Period.
He first recorded performance is in 1662 when he appeared in Ignoramus at Whitehall Palace, likely as a child actor.
It was further eight years before he was solidly established in the Duke's Company in 1670 beginning with The Forc'd Marriage by Aphra Behn.
He became a regular with the company over the following decade, often playing young lover roles.
This article about an English stage actor is a stub.