René "Bill" Domingo (28 December 1928 – 13 June 2013) was a French professional footballer who spent his entire career as a midfielder for Saint-Étienne. He was their long-term captain in the 1950s and 60s, and helped the team to their first ever domestic trophies.

A youth product of La Combelle, Domingo joined Saint-Étienne in 1949, and became their emblematic player and captain. He captained Saint-Étienne as they won their first ever trophy, the Coupe Charles Drago in 1955. He also led the club to their first two Ligue 1 titles in 1956–57, their first Trophée des Champions in 1957 and 1962, Ligue 2 in 1962–63, and their first Coupe de France in 1962.^[1] He is the record appearance holder in the history of Saint-Étienne, with 537 games, and 423 in Ligue 1.^[2]

Domingo was born in France to Spanish parents.^[3] Domingo made one appearance for the France national football team in a friendly 4-0 loss to England on 27 November 1957.^[4]

Domingo died on 13 July 2013, in Clermont-Ferrand.^[5]

Saint-Étienne

• Ligue 1 (2): 1956–57, 1963–64
• Ligue 2 (1): 1962–63
• Coupe de France (1): 1962
• Trophée des Champions (2): 1957, 1962
• Coupe Charles Drago (2): 1955, 1958