Parliamentary elections were held in Estonia on 1 March 2015. Advance voting was held between 19 and 25 February with a turnout of 33 percent. The Reform Party remained the largest in the Riigikogu, winning 30 of the 101 seats. Its leader, Taavi Rõivas, remained Prime Minister. The newly elected 101 members of the 13th Riigikogu assembled at Toompea Castle in Tallinn within ten days of the election. Two political newcomers, the Free Party and the Conservative People's Party (EKRE) crossed the threshold to enter the Riigikogu.

The Estonian Reform Party is a liberal political party in Estonia. The party has been led by Kaja Kallas since 2018. It is colloquially known as the "Squirrel Party", referencing its logo.