Michael Andrew Johnston (born 19 April 1999) is a professional footballer who plays as a winger for EFL Championship club West Bromwich Albion.

[6] On 28 November 2019, Johnston scored in a 3–1 victory against Ligue 1 team Stade Rennais in the UEFA Europa League.

He subsequently found opportunities rare during the 2021–22 campaign with arrivals Jota, Liel Abada and Daizen Maeda ahead of Johnston in the pecking order for his position.

[9][10] During the summer of 2022, manager Ange Postecoglou confirmed that Celtic would look to loan Johnston out for more regular game time, commenting that: "There's definitely a talented footballer there, but sometimes you just need a different environment to help that happen".

Belgian Pro League club Standard Liège (managed by former Celtic head coach Ronny Deila) were reportedly interested in his services, along with Scottish Premiership side Hibernian.

[12] On 15 October 2022, Johnston scored his first goal and brace for Vitória S.C. in a 3–1 Taça de Portugal win against CF Canelas 2010.