Fourth or the fourth may refer to:

• the ordinal form of the number 4
• Fourth (album), by Soft Machine, 1971
• Fourth (angle), an ancient astronomical subdivision
• Fourth (music), a musical interval
• The Fourth, a 1972 Soviet drama

• All pages with titles beginning with Fourth
• All pages with titles beginning with The Fourth
• 1/4 (disambiguation)
• 4 (disambiguation)
• The fourth part of the world (disambiguation)
• Forth (disambiguation)
• Quarter (disambiguation)
• Independence Day (United States), or The Fourth of July