The 2019–20 season was Partick Thistle's second consecutive season in the Scottish Championship, having been relegated from the Scottish Premiership at the end of the 2017–18 season. Partick Thistle also competed in the League Cup, the Scottish Challenge Cup and the Scottish Cup. On 15 April, the SPFL voted to end the lower leagues in Scottish football due to the coronavirus pandemic and as a result Partick were relegated to League One after two years in the Championship, which the club decided not to take legal action against.