William Sands, senior (died 1751), was an English architect and mason who worked in Spalding, Lincolnshire.

He was master of the Freemason’s Lodge and a member of the Spalding Gentlemen's Society.

[1] He appears to have been an architect who supplied plans for houses for other craftsmen to construct.

Examples of his work can be seen in Croyland Abbey and the church at Weston, Lincolnshire.

[2] His architectural practice was continued by his son William Sands, junior.