Count: 0 — There are no Russian words that start with the Latin letter “W”. Russian uses the Cyrillic alphabet, and the letter W does not exist in standard Russian spelling. As an interesting detail, English words that begin with W are normally adapted into Russian with the Cyrillic letters В (v) or У (u), so any attempt to compile “Russian words that start with W” returns nothing that meets strict, authoritative criteria.
Understand the historical and technical reasons for this gap. Modern Russian lacks a native /w/ phoneme; sounds historically written with a W-like letter in some languages shifted to /v/ or /u/ in Slavic developments. Standard transliteration systems (for example, BGN/PCGN) render the Russian letter В as v, not w, so authoritative sources such as the Russian National Corpus, major dictionaries, and frequency lists do not list headwords beginning with a W. Consult those resources and you will find the same pattern.
Consider what does come close and how to handle the situation. Loanwords and names from English and other languages that start with W are normally written in Russian as виски (whisky → viski), Вашингтон (Washington → Vashington), веб (web → veb), or with У for particular pronunciations, and some brand logos may retain a Latin W stylistically but not in standard Russian orthography. When compiling vocabulary lists, gather words by their Cyrillic initials (for example, В / v) and use a consistent transliteration, verify entries with two sources, and present the Cyrillic headword, English gloss, and a short example sentence.