Philip III, Margrave of Baden-Rodemachern (15 August 1567 in Rodemachern – 6 November 1620 at Hochburg Castle in Emmendingen) was Margrave of Baden-Rodemachern from 1588 until his death.
Philip III was the second son of Christopher II and Princess Cecilia of Sweden.
He inherited Baden-Rodemachern after the death of his brother Edward Fortunatus in 1600, and took up residence at Ettlingen Castle.
In 1605, Philip enlisted soldiers to liberate Baden-Baden, which had been occupied by Baden-Durlach since 1594. The attempt failed, and Philip's cousin George Frederick took him prisoner. Philip was held in Durlach, and later at Hochburg Castle, where he died childless in 1620.