Ataman (Greek: Ἀτουμάν, Ἀτμάν; Arabic: عُطمان), posthumously known as Osman (Arabic: عُثمان), was the eponymous founder of the Devlet-i Aliye-i Osmaniye, the "Sublime Ottoman State."

Mother: unknown

Father: Ertoğrıl

Brother(s): Saru Batu, Savcı Beg, Gündüz Alp

Sisters(s): unknown

Son(s): Alaäddin Erden Ali Paşa, Çoban Beg, Fülan Beg, Hamid Beg, Murad Arslan Melik Daughter(s): Fatma Xatun

Beg, Orxan Ğazi, Pazarlı Beg, Savcı Beg

Wives: Fülane Xatun, Qameriye Malxun Xatun, Rabiä Bala Xatun

Born: unknown

Died: 1323/4 C.E.

Tribe: Oğuz

Sub-tribe: Qayığ

Dynasty: Xanedan-ı Al-i Osman

Reign: 1299 – 1323/4 C.E.

Predecessor: none

Successor: Orxan Ğazi