Keturi brūkšniai is a polemical book by Lithuanian historian Edvardas Gudavičius, written in the Lithuanian language. It was published in 2002 by Aidai in Vilnius (ISBN 9955-445-55-6). It does not have any proper title, but publishers and book sellers usually put four dashes (Lithuanian: Keturi brūkšniai) as the title.