Thirteenth

Thirteenth or 13th may refer to:

• Ordinal form of the number 13 (number).
• A fraction, , equal to one of 13 equal parts
• Thirteenth (interval)

Popular culture

• 13th (film), a 2016 documentary on the Thirteenth Amendment to the United States Constitution
• 13th (TV series), 2025 Indian television series
• "The 13th", a song from Wild Mood Swings by The Cure
• "The Thirteenth" (Orange Is the New Black), a 2019 television episode
• Thirteenth (fairy tale), an Italian fairy tale from Sicily

Geography

• 13th meridian east
• 13th meridian west
• 13th parallel north
• 13th parallel south
• Thirteenth Avenue (disambiguation)
• 13th Street (disambiguation)

Military

• Thirteenth Army (disambiguation)
• 13th Battalion (disambiguation)
• 13th Brigade (disambiguation)
• 13th Division (disambiguation)
• 13th Regiment (disambiguation)
• 13th Squadron (disambiguation)

Other

• Thirteenth Amendment (disambiguation)
• Thirteenth Amendment to the United States Constitution
• 13th century
• 13th century BC
• Thirteenth of the month
• Friday the 13th

See also

• 13 (disambiguation)