Fourth or the fourth may refer to:
- the ordinal form of the number 4
- One fourth, , a fraction, one of four equal parts of a whole
- Fourth (album), by Soft Machine, 1971
- Fourth (angle), an ancient astronomical subdivision
- Fourth (music), a musical interval
- The Fourth, a 1972 Soviet drama
Places
- 4th meridian east, a line of longitude extending through Europe and Africa
- 4th meridian west, a line of longitude extending through Europe and Africa
- 4th parallel north, a circle of latitude above the Equator
- 4th parallel south, a circle of latitude below the Equator
- 4th Street (disambiguation)
- Fourth Avenue (disambiguation)
Time
- 4th century
- 4th century BC
Dates
- Fourth of the month, a recurring calendar date
- Fourth of January
- Fourth of February
- Fourth of March
- Fourth of April
- Fourth of May
- Fourth of June
- Fourth of July
- Fourth of August
- Fourth of September
- Fourth of October
- Fourth of November
- Fourth of December
See also
- 1/4 (disambiguation)
- 4 (disambiguation)
- Fourth Amendment (disambiguation)
- The fourth part of the world (disambiguation)
- Forth (disambiguation)
- Quarter (disambiguation)
- Independence Day (United States), or The Fourth of July
- Star Wars Day, or May the Fourth
- 4th Newtownabbey F.C.