Theory test may refer to:

• The two-part theory section of the United Kingdom driving test
• The computerised test required to obtain a Driving licence in the Republic of Ireland
• Any of the similar tests required in many other countries, see driving test and driver's license.

• Fifteen To One
• Fifteen (TV series)
• Fifteen Years War
• Fifth
• Fifth Air Force
• Fifth amendment
• Fifth Amendment
• Fifth Amendment of the Constitution of Ireland
• Fifth amendment rights
• Fifth amendment rights of witness
• Fifth Amendment rights of witnesses
• Fifth Amendment to the Constitution of the United States
• Fifth Amendment to the U.S. Constitution
• Fifth Army
• Fifth Army (Ottoman Empire)
• Fifth Army (United Kingdom)
• Fifth Avenue
• Fifth Avenue-Bryant Park (IRT Flushing Line)
• Fifth Avenue Bus Company
• Fifth Avenue (IRT Flushing Line station)
• Fifth Avenue Place (Pittsburgh)
• Fifth Avenue Vietnam Peace Parade Committee
• Fifth Beatle
• Fifth Brigade
• Fifth Brother