Sir Squire Bancroft, born Squire White Butterfield, was an English actor-manager. He changed his name to Squire Bancroft Bancroft by deed poll just before his marriage. He and his wife Effie Bancroft are considered to have instigated a new form of drama known as 'drawing-room comedy' or 'cup and saucer drama', owing to the realism of their stage sets.

An actor-manager is a leading actor who sets up their own permanent theatrical company and manages the business, sometimes taking over a theatre to perform select plays in which they usually star. It is a method of theatrical production used consistently since the 16th century, particularly common in 19th-century Britain and the United States.