Founded in 1922, Galwegians has a long and distinguished history at the forefront of Connacht Rugby.
The golden age of Galwegians rugby was the five-in-a-row Connacht Senior League and Cup double in 1955-1960, an unprecedented feat in Irish rugby, when Wegians were arguably the best team in the country, regularly beating the other senior clubs in Ireland.
Since 2000 Galwegians have 8 Connacht Senior Cup and 10 Connacht Senior League titles including Cup and League doubles in 2000-01 and 2001–02, then three doubles in a row in the 2011–12, 2012–13 and 2013–14 seasons.
Galwegians Junior team broke a 34 year wait for Connacht Cup glory by beating Monivea in the final to become Heineken Connacht Junior Cup Champions in 2008, and repeated that feat in 2012 and 2014.
In 2011 the Galwegians U17 team were All Ireland U17 champions and they were runners up in 2014. In 2012 and again in 2014 the Galwegians Womens team were All Ireland Womens Cup winners.
Galwegians surely hold the distinction of having provided more IRFU Presidents than any other club: Henry Anderson (1945-46), Johnny Glynn (1958-59), CP Crowley (1968-69), John Moore (1981-82), Bobby Deacy (1996-97), Don Crowley (2002-2003) and Billy Glynn (2012-13).