Boy Fitzwilliam Fitzwilliam means: Son of William. Fitzwilliam Name Origin: English Share your thoughts about Fitzwilliam Share Popularity Lists Infographic of Fitzwilliam name meaning, which is Son of William Ask your friends & family about Fitzwilliam… Share Pin Tweet Email Text Fitzwilliam Name Popularity How popular is the name Fitzwilliam? Here’s everything we know. Sorry, popularity data for the name Fitzwilliam is not available. Lists With Fitzwilliam Find inspiration in these baby boy name lists featuring the name Fitzwilliam. Literary Names for Boys That Will Fit Your Baby Bookworm // 216 names Let literary names for boys capture your heart with their endless adventure. This list is sure to please the book lover in you. Share your thoughts on the name Fitzwilliam Cancel ReplyYour email address will not be published. All fields are required *Name * Email * Your Thoughts * Δ Search Baby Names Quick Search Search Go Advanced Search Name Starts With Ends With Gender Any Boys Girls Only show unisex names Current Popularity [U.S.] Any More Popular Less Popular Origin Select origin… English Latin Hebrew Greek German Irish French American Spanish Arabic Aboriginal African American Ancient Anglo-Saxon Arabic Aramaic Armenian Arthurian Legend Asian Aztec (Nahuatl) Bulgarian Celtic Chinese Danish Dutch Egyptian English European French Gaelic German Greek Hebrew Hungarian Indian (Sanskrit) Indonesian Irish Israeli Italian Japanese Latin Modern Native American Persian Polish Polynesian Portuguese Russian Scandinavian Scottish Slavic Spanish Turkish Unknown Vietnamese Welsh Yiddish Meaning Number of Letters Min Max Syllables [BETA] Min Max Search Baby Names