Count: 0 — There are no Asian countries that start with the letter W. Search the standard country lists used by the United Nations, the World Bank, and the CIA World Factbook and you will find no sovereign state in Asia whose English name begins with W. Note that W does appear in the names of regions, cities, and informal place names across Asia, but not in the official English names of recognized Asian countries.
Understand why this criterion produces no results. Official country names follow long-standing endonyms and exonyms, and many Asian languages do not use the W sound or the Latin-letter W as an initial; English names therefore commonly begin with other letters. Authoritative sources (UN member lists, World Bank country lists, CIA World Factbook) standardize names in English and none list a sovereign Asian state beginning with W. Remember to exclude dependent territories and unrecognized micro-claims when compiling a sovereign-state list; that exclusion removes several W-prefixed place names that are not independent countries.
Check related items that come close but do not meet the criteria. The West Bank is a Palestinian territory, not a UN member state; Western Sahara lies in North Africa; Wallis and Futuna is a French overseas collectivity in the Pacific; West Timor is a region of Indonesia. If you were looking for places in Asia that start with W, search regional lists of cities, provinces, or dependent territories instead, and consult the UN and World Bank country name lists for authoritative, exhaustive A–Z country guides.