Bogusław, also Bogosław, Bohusław, Bogsław (Czech: Bohuslav, Cyrillic: Богуслав, German: Bogislaw, Bogislaus) is a Slavic men's name made from the roots Bogu- ("Bóg", "Boga", meaning "God" in Polish, but originally "chance, good luck") and -sław ("fame, glory").
It is one of the few Slavic given names that are present throughout the Slavic language family, and is known in Poland since the beginning of the 13th century. It was popular in mediaeval times, where it has been recorded for about 700 people and during the 20th and early 21st centuries. It only dropped in popularity during the 16th century. Common among most Slavic nations, today the name is usually found among Polonophone speakers.
The female equivalent of this Slavic name is Bogusława. Typical diminutive versions of the name in Polish include: (male) Bosław, Bogusz, Bogus, Bohusz, Bogoń, Bogosz, Bogunek, Bost, Bosz, Boszek; (female) Boguta, Bogna, Bogota, Bogusza, Boszuta.