In 2011, now a widower, Tucci became engaged to Felicity Blunt, an English literary agent. She is the elder sister of actress Emily Blunt, who co-starred with Tucci in "The Devil Wears Prada" and introduced the couple several years later at her own 2010 wedding to actor John Krasinski. Tucci and Blunt married in a civil ceremony in summer 2012, followed by a larger observance at Middle Temple Hall in London on September 29, 2012. The couple live in Barnes, London, and have a son born in January 2015 and a daughter, born in April 2018.