John George of Ohlau (Polish: Jan Jerzy oławski) (17 June 1552 – 6 July 1592), was a Duke of Ohlau and WohlauWołów (since 1586 with his brother as a co-ruler until 1592).

John George
Duke of Oława, Wołów
Coat-of-arms of Silesian Piasts
Born	17 June 1552 Ohlau (Oława)
Died	6 July 1592 Oława
Noble family	Silesian Piasts
Spouse(s)	Anna of Württemberg
Issue	George Christoph Barbara
Father	George II the Pious
Mother	Barbara of Brandenburg

He was the second son ofGeorge II the Pious, Duke of Brieg-Ohlau-Wohlau (Brzeg-Oława-Wołów), by his wifeBarbara, daughter ofJoachim II Hector, Elector of Brandenburg.

In 1586, after the death of his father, John George and his older brother Joachim Frederick inherited (as a co-rulers) only Ohlau and Wohlau, because Brieg was given by his late father to their mother Barbara until her own death. Both brothers settled their residence in Ohlau.

InBrzeg on 16 September 1582, John George married withAnna (Stuttgart, 12 June 1561 – Haynau (Chojnów), 7 July 1616), daughter ofChristoph, Duke of Württemberg. They had two children:

1. George Christoph (13 May 1583 – 10 May 1584).
2. Barbara (8 February 1586 – 16 April 1586).

On his death without surviving male issue, John George was succeeded by his brother Joachim Frederick, who became in sole ruler, but only in Wohlau, because Ohlau was given by John George's widow. Anna lost her land when she married again in 1594 with DukeFrederick IV of Liegnitz, and reverted to Joachim Frederick, who two months later also obtain Brieg when his mother Barbara died.

• Marek, Miroslav."Complete Genealogy of the House of Piast: Silesia". Genealogy.EU.^{[self-published source][better source needed]}
• Genealogical database by Herbert Stoyan