Trevin \t-re-vin\ as a boy's name is pronounced TREV-in. It is of Old English origin, and the meaning of Trevin is "fair town". Short form of Trevelyan. Variants are probably influenced by Devon and Davion. See also Travon.
Trevin has 6 variant forms: Trevan, Treven, Trevian, Trevion, Trevon and Trevyn.