It will be the Cowgirls' first appearance in the NCAA Championship since 2013 and 21st overall.
No. 9 OSU will compete against 23 other teams, as well as 12 individuals not associated with those teams, at nationals. The top six teams from the four regionals advance to the NCAA Championship.
Linnea Johansson led the Cowgirls, earning a ninth-place finish with a 9-over 225. Big 12 individual champion Kenzie Neisen finished a stroke behind her in a tie for 12th.
With a 13-over 229, Maddie McCrary finished in 20th place, and Emma Broze came in 24th with a 14-over 230.