Tancred may refer to:
- Tancred (given name)
- Tancred of Hauteville
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- Tancred of Hauteville (980-1041), founder of the Hauteville family
- Tancred, Prince of Galilee (1075-1112), a leader of the First Crusade, and regent of Antioch
- Tancred, Prince of Bari (1119-1138), son of Roger II of Sicily, and Prince of Taranto from 1132 to 1138
- Tancred, Count of Syracuse (f. 1104)
- Tancred of Sicily (1138-1194), King of Sicily in the late twelfth century
- Tancred of Conversano, twelfth century count of Brindisi
- Tancred Tancredi (1185-1241), Dominican friar
- Tancred of Bologna (1185-1236), Dominican canonist
- Tankrad, abbot of Prüm Abbey in the ninth century
- Fictional characters
- Tancred of Salerno, character in Boccaccio's Decameron
- Tancred Torrson, a character in Jenny Nimmo's "Children of the Red King" series
- Tancred, a character in the computer game Diablo 2
- Tancred, a character in Summoner, known as the "King of Fleas"
- Works of art
- Tancredi, an opera by Gioachino Rossini (1813)
- Tancred (novel), a novel published in 1847 by Benjamin Disraeli
- Tancred (play), a nineteenth century play by John Augustus Stone
- Surname
- Lawson-Tancred Baronets, title held by ancient Yorkshire family since 1662
- Placename
- Tancred, California, in Yolo County, USA