MacIntyre signed for the Hibernian youth academy from The Spartans in 2019, joining up at the same time as his younger brother Jacob.
[3] In April 2021, Oscar signed his first professional contract with Hibernian and debuted for the first-team in May 2022.
[5][6] In February 2024 he was loaned to Annan Athletic for the remainder of the 2023–24 season.
[7] His younger brother Jacob MacIntyre is also a footballer, currently in the Hibernian youth academy.
This biographical article related to association football in Scotland, about a forward born in the 2000s, is a stub.