For the application year 2024, the University of California, Santa Barbara's Regular Decision acceptance rate stands at 28.0%, with 15,457 applicants admitted out of 55,438 total applicants. This marks a slight decrease from the 29.56% acceptance rate recorded in the application year 2020. Historical data for the intervening years is unavailable, but the current rate reflects a competitive landscape that may continue to tighten in subsequent years given the increasing number of applicants.