Joonas Tamm (born 2 February 1992) is an Estonian professional footballer who plays as a centre-back for Bulgarian First League side Botev Plovdiv and the Estonia national team.

[13] Starting from the first qualifying round, he helped the team reach the UEFA Europa League group stage.

On 8 February 2019 Tamm joined Ekstraklasa club Korona Kielce on a six-month loan deal.

[14] On 27 June 2019, Tamm moved to Eliteserien club Lillestrøm on loan until the end of the 2018–19 season, with the option to make the deal permanent.

[18] On 22 August he scored in a 3–1 victory over Zorya Luhansk in the opening match of the 2020–21 Ukrainian Premier League season.

[19] On 24 September he was included in the squad for the Europa League third qualifying round tie against VfL Wolfsburg at AOK Stadion.

[24][25] In March 2022, Tamm returned to Flora once again on loan until the end of the season due to the interruption of the Russian invasion of Ukraine.

[26] He played the first match on 9 March in the Estonian Cup against FCI Levadia, helping the side advance to the semi-final.

[32] On 14 August he scored the winning goal in a league game against Chindia Targoviste and again was named to the Team of the Week.

[35] On 10 June 2011, he was named by manager Tarmo Rüütli to the Estonian senior squad to face Chile and Uruguay in friendly matches.