Vakoun Issouf Bayo (born 10 January 1997) is an Ivorian professional footballer who plays as a forward for EFL Championship club Watford on loan from Serie A side Udinese, and the Ivory Coast national team.

[4] He was left out of the Celtic squad for the later stages of the 2018–19 UEFA Europa League, with the club only able to register three of their four January window signings.

[6][7] On 12 August 2020, Bayo signed for French club Toulouse, on a one-year loan, with an additional option to buy.

[10] On 16 May 2022, Charleroi confirmed that they had exercised the option to purchase and had signed Bayo on a contract until 2026 after a successful loan spell that saw him score eleven goals in sixteen matches.

[13] On 29 August 2024, Bayo signed a four-season contract with Udinese in Italy, and was loaned back to Watford for the rest of the 2024–25 season.