Count: 0 — There are no authentic Latin boy names that start with W. Classical Latin did not include the letter W, and authoritative sources (classical dictionaries and Roman praenomina/nomina lists) record no native personal names beginning with W. Interesting detail: the letter W develops later for Germanic languages as a “double V/ double U,” so many modern names that begin with W (William, Walter) are Germanic borrowings rather than original Latin names.

Expect this specific search to return no results for clear historical reasons. Ancient Roman orthography uses V to represent both the consonant /w/ and the vowel /u/, so Latin naming practice never produced names that begin with a separate W character. Medieval Latin sometimes records Latinized Germanic names that modern English writes with W — for example William appears in Latin sources as Gulielmus or Guilelmus and Walter as Gualterius — but these are borrowings and are spelled with Gu- or G- in Latin records, not as native W‑initial names. If you want similar options, consider Latin names that start with V (Victor, Valentinus, Vibius) or look up Germanic W names and their Latinized forms (Gulielmus, Gualterius).