53

53 may refer to:

• 53 (number)
• one of the years 53 BC, AD 53, 1953, 2053
• FiftyThree, an American privately held technology company that specializes in tools for mobile creation and visual thinking
• 53rd Regiment Alabama Cavalry
• 53rd Regiment of Foot (disambiguation)
• 53rd Division (disambiguation)
• 53 (Jacky Terrasson album), 2019
• "Fifty Three", a song by Karma to Burn from the album Arch Stanton, 2014
• Fifth Third Bank
• 53 Kalypso, a main-belt asteroid

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