Samuel Arnold

• Samuel Arnold (composer), English composer and organist
• Samuel Arnold (Connecticut politician), U.S. Representative from Connecticut
• Samuel Arnold (conspirator), co-conspirator of a plot to kidnap U.S. President Abraham Lincoln
• Samuel G. Arnold, U.S. Senator from Rhode Island
• Samuel James Arnold, English dramatist
• Samuel W. Arnold, U.S. Representative from Missouri
• Samuel Arnold (actor), French actor