Marcellin Dègnon Koukpo (born 6 April 1995) is a Beninese international footballer who plays as a striker for Saudi club Al-Safa.
Koukpo signed for Algerian club CR Belouizdad in September 2020 on a three-year contract.
In 2021, Koukpo signed a two-year contract with CS Constantine.
On 8 September 2024, Koukpo joined Najran. On 1 October 2025, Koukpo joined Al-Safa.
At the youth level he played in 2015 African U-20 Championship qualifiers.