Oleg Reabciuk (born 16 January 1998) is a Moldovan professional footballer who plays as a left-back for Russian Premier League club Spartak Moscow and the Moldova national team.

[2] On 26 November 2017, Reabciuk made his professional debut for FC Porto B in LigaPro, at home to Associação Académica de Coimbra.

[6] By 18 March, when he netted his fourth goal in ten appearances with one in a 3–0 home win over S.C. Covilhã, he was the team's top scorer for the season.

[10] On 1 January 2021, Reabciuk completed a €2 million transfer to Superleague Greece outfit Olympiacos, signing a long-term deal until the summer of 2025.

[11] He made his debut five days later in a 4–0 win at Asteras Tripolis as an 85th-minute substitute for José Holebas,[12] and ended the season as a league champion.

[13] On 16 September 2021, Reabciuk scored his first goal for the club in a 2–1 UEFA Europa League home win over Royal Antwerp in the 87th minute.