Count: 0. In searches for “Russian boy names that start with X” there are no authentic matches in Russian name dictionaries, the Orthodox saints calendar, or civil-registry lists. Russian uses the Cyrillic alphabet, and the Latin letter X does not correspond to a standard initial in native Russian male names. Many names that begin with X in English—like Xavier, Xenophon, or Xenia—appear in Russian with Х (Kh/H) or the two-letter sequence Кс (Ks), so they never begin with a Latin X when properly transliterated.

Understand the reasons: Cyrillic Х represents the /x/ sound and is transliterated as Kh or H, while Greek Xi (Ξ) becomes Кс (Ks) in Russian, producing names such as Ксенофон (Ksenofon — Xenophon) and Ксенон (Ksenon) that come close but start with Кс in Russian and with Ks in standard transliteration. Foreign borrowings like Xavier are written Хавьер in Russian and transliterate with H/Kh, not X. For accurate A–Z lists, consult authoritative sources (Russian name dictionaries, the saints calendar, and official registries) and search by Cyrillic initials Х or Кс, or by specific names such as Ксенофон and Ксенон.