trefor

• Trefor Evans (born 1947), former Wales international rugby union player
• Trefor Jenkins (born 1932), Welsh-born South African human geneticist
• Trefor Richard Morgan (1914–1970), Welsh nationalist activist and businessman
• Trefor Morris (born 1934), Chief Inspector of Constabulary for England, Wales and Northern Ireland from 1993 to 1996
• Trefor Owen (1933–2001), Welsh amateur footballer
• Trefor Proud ({{fl.|1989–present}}), make-up artist in film and television
• Trefor Pugh ({{fl.|1962, 1965}}), former New Zealand international footballer

• Dafydd Trefor (died 1528?), Welsh cleric and bard
• John Trefor, British television director and producer
• John Trevor (died 1357), Ieuan Trefor in Welsh, first bishop of St Asaph, Wales
• John Trevor (died 1410), Ieuan Trefor in Welsh, Bishop of St Asaph, Wales, and Anti-Bishop of St Andrews in Scotland

• Trefor, Anglesey, a hamlet
• Trefor, Gwynedd, a village
• Trevor, Wrexham, a village called Trefor in Welsh

{{Canned search|Treffor}}

• Trevor (disambiguation)
• Trevorrow
• Trev
• {{srt}}

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Category:Welsh masculine given names

Category:Welsh-language surnames