The Estonian Reform Party (Estonian: Eesti Reformierakond) is a liberal political party in Estonia. The party has been led by Kristen Michal since 2024. It is colloquially known as the "Squirrel Party" (Estonian: Oravapartei) or as "the Squirrels" (Estonian: oravad), referencing its logo.
It was founded in 1994 by Siim Kallas, then-president of the Bank of Estonia, as a split from Pro Patria National Coalition Party. As the Reform Party has participated in most of the government coalitions in Estonia since the mid-1990s, its influence has been significant, especially regarding Estonia's free-market and low-taxation policies. The party has been a full member of Liberal International since 1996, having been an observer member between 1994 and 1996, and a full member of the Alliance of Liberals and Democrats for Europe (ALDE). Reform Party leaders Siim Kallas, Taavi Rõivas, Andrus Ansip, Kaja Kallas and Kristen Michal have all served as prime ministers of Estonia. From 11 March 2025, the party has been the senior member in a coalition government with Estonia 200.