| Ahmad Ansari | |
| Birth Place: | Gerash, Fars, Iran |
| Death Place: | Shiraz, Fars, Iran |
| Burial Place: | Doha, Qatar |
| Other Names: | Sheikh Ahmad |
Ahmad Ansari Gerashi (Persian: احمد انصاری گراشی) known as Sheikh Ahmad (Persian: شیخاحمد), was an Iranian merchant, benefactor and international investor. He was born in Gerash, Fars, Iran in 1938 or 1939 and died on 11 September 2016 in Namazi Hospital, Shiraz. He is buried in Doha, Qatar.