It isn’t clear what “ROTY” you’re asking about, because several big awards and leagues use that exact “Rookie of the Year” shorthand.

Here are the main possibilities people usually mean when they say “who won ROTY”:

  • NBA Rookie of the Year – The NBA tracks this award every season, and the most recent listed winner is Stephon Castle of the San Antonio Spurs.
  • NASCAR Rookie of the Year – Multiple NASCAR series award a ROTY; for example, the O’Reilly Auto Parts Series lists Connor Zilisch as the 2025 ROTY winner, and other series (like the Craftsman Truck Series) have their own separate ROTY tables.
  • K‑pop / music Rookie of the Year – “ROTY” is heavily used in K‑pop fandoms for year‑end music show awards, and in 2026 fan chatter and posts congratulate the group Cortis for winning a Rookie of the Year award, likely at a major Korean award show (for example, Golden Disc Awards).

Because your question is just “who won roty,” I can’t safely tell which specific award, league, or year you’re asking about. To give you a precise answer instead of guessing, I’d need you to clarify one of these:

  • Which sport or industry? (NBA, MLB, NFL, NASCAR, K‑pop awards, etc.)
  • Which season or year? (e.g., 2024–25 NBA, 2025 NASCAR, 2026 K‑pop award show, etc.)

Reply with something like:

  • “NBA ROTY 2024–25” or
  • “K‑pop MAMA ROTY 2025” or
  • “NASCAR Truck Series ROTY 2025”

and I can narrow it down to the exact winner you’re looking for.