Triantafyllos is both a Greek masculine given name and surname. Notable people with the name include:

Given name

Triantafyllos Macheridis (born 1973), Greek footballer Triantafyllos Pasalidis (born 1996), Greek footballer Triantafyllos Siaperas (1932–1994), Greek chess player Saint Triantaphyllos (1663–1680), Greek saint Triantafyllos Tsapras (born 2001), Greek footballer Triantafyllos Tsongas (born 1938), Greek rower

Surname

Kleanthis Triantafyllos (1850–1889), Greek writer Yves Triantafyllos (born 1948), French footballer