Hey Mitch...

Friends and I had this discussion once and the last time we looked there were (64) MLB players that played in the LLWS. As far as college ball, and what level, it would be a tough task to find out unless the LLWS site keeps track of all the former participants.

I do know the NCAA has the "notable" players page that seems to have just been updated:

www.ncaa.com/news/baseball/article/2023-08-16/notable-college-baseball-players-who-starred-little-league-world-series