Simon V of Saarbrücken-Commercy

Simon of Saarbrücken-Commercy (c. 1284–1325) was the eldest son of Count Johann I of Saarbrücken, marked out as sole heir to both Saarbrücken and Commercy. In 1309 he married Margaret of Savoy, daughter of Louis I, lord of Vaud, who bore him a son, Johann II, and daughters.

Simon died before his father in 1325, overturning the planned succession: his younger brother Johann was designated heir to Commercy, while his young son Johann was designated heir to Saarbrücken.