Henryk IX Starszy (literally Henry IX the Older) (b. probably between 1387 and 1392, d 11 November 1467 in Krosno) was a Duke of Żagań-Głogów during 1397–1412 (as co-ruler of his brother), during 1412–17 ruler over Szprotawa, Krosno Odrzańskie, Świebodzin and half of Głogów (with his brothers as co-rulers), since 1417 ruler over Szprotawa, half of Głogów, since 1420 ruler over Kożuchów and Zielona Góra, from 1430 ruler over Krosno Odrzańskie and Świebodzin and since 1446 Duke of Lubin.
He was the second son of Henry VIII the Sparrow, Duke of Głogów by his wife Katharina, daughter of Duke Władysław of Opole.
After his father's death in 1397, the Dowager Duchess Katharina moved with their children to Kożuchów, who, together with Zielona Góra, was her Oprawa wdowia. Between 1397-1401 the official custody of the princes and the regency of the Duchy was held by Duke Rupert I of Legnica. This was a difficult task, since Henryk VIII leave his lands in a difficult financial situation. Rupert I gradually began the payment of Henryk VIII's creditors and improved the general situation of the Duchy. The Regent showed special assistance to the main cities of the Duchy: Głogów, Krosno Odrzańskie and Szprotawa.
After his older brother Jan I attained his majority in 1401, he assumed the guardianship of his younger brothers and assumed the full government of the Duchy. In 1403 the brothers received the lands of their uncle Henry VI the Older after the resignation of his widow Hedwig of Legnica, who ruled them as her Oprawa wdowia since 1393. In 1412 was made the formal division of the Duchy: Henry IX, together with his brothers Henry X Rumpold and Wenceslaus obtained the Duchy of Głogów (who included half of Głogów, Świebodzin, Krosno Odrzańskie and Szprotawa).