Marcus Michael Riccelli (born June 7, 1978) is an American politician of the Democratic Party.

He won election to the Washington State Senate in November 2024, defeating Republican Jim Wilson with 60.54% of the vote.

He received a Bachelor of Business Administration degree from Gonzaga University in 2000, and a Master of Public Administration degree in 2007 from the Daniel J. Evans School of Public Affairs at the University of Washington.

Senator Maria Cantwell’s Eastern Washington director and as senior policy adviser to the former state Senate majority leader Lisa Brown.

He chaired the House Health Care and Wellness committee during the 2023 – 2024 legislative biennium.