Mraz was engaged to singer-songwriter and long-time close friend Tristan Prettyman on Christmas Eve 2010; they broke off the engagement six months later.
Mraz lives a health-conscious lifestyle and has said that he eats mostly raw vegan foods. His vegan diet has also influenced his music. He owns a five-and-a-half acre avocado farm in Oceanside, California. He is an investor at Café Gratitude, a vegan restaurant in Los Angeles, and named his 2011 tour Gratitude Café in its honor. His hobbies include surfing, yoga and photography.
On October 25, 2015, Mraz married his girlfriend, Christina Carano, in a private ceremony in his hometown of Mechanicsville, Virginia.
In June 2018, Mraz penned a "love letter" to the LGBT community, as part of a Billboard feature during gay pride month. A line in the poem, "I am bi your side. / All ways" led some media reports to state that the poem represented Mraz's coming out as bisexual. In an article published on July 19, 2018, by Billboard, Mraz said he has had previous experiences with men, even while dating Carano. Mraz said Carano defined him as a "two-spirit", a description that was criticized by some as misappropriating a word originally designed solely for the native population, and for distorting the term's meaning. In August 2018, Mraz confirmed in an interview with the New York Post that he now identifies as bisexual.
