What does Guilherme mean?
Guilherme [guil-herme] as a boys' name is of Old German derivation, and the name Guilherme means "determined protector". Guilherme is a variant form of Guillaume (Old German): French transcription of William.
(female) Middle name pairings:
Guilherme Maurice (G.M.), ..
How popular is Guilherme?
Guilherme is a rare first name for males but a somewhat popular last name for both adults and children (#121780 out of 150436, Top 81%). (2000 U.S. Census)
Which version is better?with its source form and related boy names. Guillermo (#660 in 2015) is the only popular alternative form of Guilherme (outside Top 2000). This form of Guilherme was popular as a baby name in 1996 (#352) and is somewhat less conventional today (#660, ▼44.1%). (Top 2000 Names, 2015)
Similar NamesSuggested similar names are Gilbert▼, Gilberto, Gilderoy, Gillette, Gilmer, Gilmore, Gualterio, Guglielmo, Guilbert, Guilford, Gunther, Guthree and Guthrie. These names tend to be more commonly used than Guilherme.See names in meaning and etymology.