Fadel Muhammad Alhaddar (Arabic: فاضل محمد الهدار, romanized: Fāḍel Muḥammad al-Haddār) is a senator for the Regional Representative Council and was appointed governor of the then-newest Indonesian province, Gorontalo, from 2001–2006.

After obtaining his degree in 1978, he entered the business world and together with a few fellow graduates set up a pioneering engineering company, PT Bukaka Teknik Utama, Tbk..

After having completely resigned his presidency from Bukaka Group in 1997, he became the owner of GEMA Group holding some joint venture companies such as PT Bayer Urethanes Indonesia (polyol manufacturer), PT Gema SemCorp Engineering (steel fabricator), PT Dowell Anadrill Schlumberger (cementing services and rental equipment for drilling on oil and gas), plus the publishing companies Warta Ekonomi and Mobil Motor.

Since 1992, he has been appointed a member of MPR-RI (People's Consultative Assembly of the Republic of Indonesia), and he was also elected as the Chief Treasurer of Golkar Party.

In 2007 he accomplished his doctorate in public administration, magna cum laude, from University of Gadjah Mada, Yogyakarta.