William Wallace (died 1631) was a Scottish master mason and architect. He served as King's Master Mason under James VI. From 1615, Wallace is known to have been the leading mason working on the King's Lodgings at Edinburgh Castle. On 18 April 1617 he was appointed King's Master Mason, holding this post until his death. Wallace was commissioned in 1618 to rebuild the north range of Linlithgow Palace, which had collapsed in 1605. He was responsible for design as well as building, and executed the new range in an Anglo-Flemish style, which he helped to popularise in Scotland.