Miguel Olvera (born November 14, 1939) is a tennis player active in the 1960s and 1970s, playing for Ecuador.

In 1967 in Guayaquil, Ecuador, Olvera and teammate Pancho Guzmán led the Ecuadorian Davis Cup to a stunning upset of the mighty United States Davis Cup team.

Ecuadorian captain Danny Carrera was so thrilled with the win that he attempted to jump the net to embrace Olvera, tripped and broke his leg.

At 21, Guzmán then teamed with Olvera in the doubles, and overcame a 0–6, 2–5 deficit to knock off Marty Riessen and Clark Graebner, 0–6, 9–7, 6–4, 4–6, 8–6.

The next day, Guzmán beat Ashe in five sets to give Ecuador the victory.