Partick Thistle Football Club are a professional football club from Glasgow, Scotland. Despite their name, the club are based at Firhill Stadium in the Maryhill area of the city, and have not played in Partick since 1908. The club have been members of the Scottish Professional Football League (SPFL) since its formation in 2013, having previously been members of the Scottish Football League. In the 2020–21 season, Thistle won Scottish League One, the third tier of the SPFL structure, and returned to the Scottish Championship, having been relegated from there in 2019–20.

Since 1936, Thistle have played in their distinctive red-and-yellow jerseys of varying designs, with hoops, stripes and predominantly yellow tops with red trims having been used, although in 2009 a centenary kit was launched in the original navy-blue style to commemorate 100 years at Firhill. Since 1908 the club have won the Scottish Second Division (third tier, now Scottish League One) twice and the Scottish First Division (second tier, now the Scottish Championship) six times, most recently in 2013. Thistle have won the Scottish Cup and the Scottish League Cup in 1921 and 1971 respectively.

Thistle are currently managed by former player Kris Doolan, who spent the majority of his professional career at the club. In 2013, they became inaugural members of the newly-formed Scottish Premiership under the management of Alan Archibald, and remained there for five consecutive seasons. During this period, Thistle secured major investment and, in 2017, finished in the top six of Scottish football for the first time in over three decades.