Walter FitzAlan (c.β1090Β β 1177) was a twelfth-century Anglo-Norman baron who became a Scottish magnate and Steward of Scotland. He was a younger son of Alan fitz Flaad and Avelina de Hesdin. In about 1136, Walter entered into the service of David I, King of Scotland. He became the king's dapifer or steward in about 1150, and served as such for three successive Scottish kings: David, Malcolm IV and William I. In time, the stewardship became hereditarily held by Walter's descendants.
Walter started his career as a minor English baron. Upon arriving in Scotland, however, he received a substantial grant of lands from his Scottish sovereigns. These included the western provincial lordships of: Mearns, Strathgryfe, Renfrew and North Kyle. The caput of Walter's holdings is uncertain, although there is reason to suspect it was either Dundonald Castle or Renfrew Castle. Walter was a benefactor of several religious houses, and was the founder of Paisley Priory.