Tellechea, Tellechéa or Telletxea is a Basque-language surname. Notable people with the surname include:
Tellechea Arturo Alonso Tellechea (born 1983), Argentine-born Spanish sailor Clemente Tellechea (born 1932), Argentine alpine skier Emiliano Tellechea (born 1987), Uruguayan footballer Gonzalo Tellechea (born 1985), Argentine triathlete Joaquín Tellechea (ca. 1761-ca. 1841), Puerto Rican-born Spanish Army sergeant major Matías Tellechea (born 1992), Uruguayan footballer Pedro Tellechea (born 1975), Venezuelan politician
Tellechéa Joseph Tellechéa (1926–2015), French footballer
Telletxea Domingo Perurena Teletxea (1943–2023), Spanish road racing cyclist Naiara Telletxea (born 1984), Spanish road cyclist