How many times has Japan won the Asian Cup as of 2025?

The national men’s football team of Japan has claimed the title of the AFC Asian Cup on four occasions (1992, 2000, 2004 and 2011).  The 1992 win was especially significant because Japan hosted the tournament, and that triumph marked their arrival as a major football force in Asia.  Although the Asian Cup has been played many times since (first in 1956), no other nation had surpassed Japan’s four-title tally as of 2025.  

Final Answer: Japan = 4 Asian Cup wins.