| Occupation: | diplomat |
| Alma Mater: | Arkansas State University |
| Nationality: | Ghanaian |
| Koby Arthur Koomson | |
| Birth Place: | Gold Coast (now Ghana) |
| Birth Date: | May 1951 |
| Successor1: | Alan John Kyerematen |
| Predecessor1: | Ekwow Spio-Garbrah |
| Appointer1: | Jerry John Rawlings |
| Term End1: | 2 November 2001 |
| Term Start1: | 7 November 1997 |
| Office1: | Ghana Ambassador to the United States of America |
Koby Arthur Koomson is a Ghanaian diplomat. He served as Ghana's Ambassador to the United States of America from 1997 to 2001.
Koomson was born in May 1951 in Gold Coast (now Ghana).[1] He had his secondary education at Ghana National College and his tertiary education at Arkansas State University.[2] He served as Ghana's Ambassador to the United States of America from 7 November 1997 to 2 November 2001.[3] [4] [5]