The 2019–20 Premier League Tournament Tier B is the second division of the 32nd season of first-class cricket in Sri Lanka's Premier Trophy. The tournament started on 31 January and was originally scheduled to conclude on 11 April 2020. On 16 March 2020, Sri Lanka Cricket postponed the rest of the tournament due to the COVID-19 pandemic. In July 2020, Sri Lanka Cricket announced that Tier A would resume on 14 July 2020. The Tier B tournament never resumed and was cancelled in August 2020 after seven rounds of matches (of eleven planned rounds).