Jim Belushi's wife has filed for divorce after almost 20 years of marriage.
Jennifer Sloan filed docs Monday in L.A. The couple has two kids together ... an 18-year-old daughter named Jamison and 16-year-old son Jared.
Belushi married Jennifer in May of 1998.
Belushi was a cast member on "Saturday Night Live" from 1983-85 and his biggest solo success, "According to Jim," ran from 2001-2009.
Belushi was married twice before, once to Marjorie Bransfield in 1990-92 and to Sandra Davenport in 1980-88.