Wolfgang Dietrich of Castell-Remlingen (German - Wolfgang Dietrich zu Castell-Remlingen) (6 January 1641 – 8 April 1709) was a German nobleman.
From 1668 until his death he was the ruler of the county of Castell-Remlingen, sharing power with his brother Friedrich Magnus of Castell-Remlingen.
He also held other offices in the Margraviate of Ansbach and the Electoral Palatinate.
In Remlingen on 7 July 1667 he married Elisabeth Dorothea Schenkin of Limpurg in Obersontheim.
With her he had six children, two of whom died in infancy: After Elisabeth Dorothea's death, Wolfgang Dietrich married again, on 7 March 1693 to Dorothea Renate of Zinzendorf and Pottendorf.