Süleyman of Germiyan (died in 1388), also known as Şah Çelebi, was the ruler of Germiyan an Anatolian beylik between 1363 and 1388. (Anatolia is the Asiatic part of Turkey)
He ascended to throne upon the death of his father Mehmet of Germiyan.
To the south of Germiyan territory, two other beyliks were fighting and Süleyman supported İlyas, a bey of Hamidoğlu, against the powerful Alaattin Ali of Karaman Beylik. Although İlyas was able to regain his former possessions from the Karaman beylik, this support caused hostility between the Germiyan and Karaman beyliks. Süleyman asked for Ottoman support against Karaman threat and consequently his daughter Devletşah Hatun married to Ottoman şehzade (prince) Bayezid (later Bayezid I). But this support was a very costly one, because Ottomans acquired the most prosperous part of the Germiyan beylik as a dowry. Even Germiyan capital Kütahya was a part of the dowry.
Süleyman had to recede to Kula and died in 1388. He was laid to rest in a tomb named Süleyman Bey türbesi in Kula He was succeeded by Yakup II of Germiyan.
He married two times: