Kilcorban, in County Galway, carries the Irish "cill", meaning a church or monastic cell, paired with the name of a saint, Corban, who has largely slipped out of popular memory. The ruined church that gives the townland its name belongs to that category of early Irish ecclesiastical sites where the dedication outlasted almost everything else, including the written record of the person being commemorated.

Saint Corban himself is an obscure figure, and the sources that might illuminate his cult or the foundation date of his church are thin. What can be said is that sites of this type, a simple rectangular nave associated with an early medieval saint and set within or near a burial ground, were common across Connacht from roughly the sixth century onwards. The pattern is familiar: a holy man or woman settles, a community forms around them, and the spot retains a sacred character long after the original buildings have crumbled. The "kil" prefix in Irish townland names is one of the more reliable indicators of genuine early Christian activity in a landscape, and Kilcorban fits that pattern. The church itself, in whatever state of preservation it now stands, is the physical remnant of a devotional tradition rooted in the early medieval period, when local saints and their "cills" were the primary units of religious life in rural Ireland.