Guy Oshiro joined the Chaminade University softball coaching staff in August 2026 and has some 35 years of coaching experience and a long commitment to developing student-athletes. He will serve as the pitching coach.

Coaching in various levels throughout Hawai'i, Oshiro most recently served as an assistant with the Cal A's in 2021-22. Prior to that role, he was an assistant at O'ahu softball power Mililani High School for eight seasons (2008-16) and was the Trojans' junior varsity head coach. He was also the head coach for the Guava Jam club softball organization from 2003-10.

Oshiro played baseball at the University of Hawai'i Hilo from 1979-83 and was inducted into the university's Athletics Hall of Fame in 2000. He received his degree at UH West O'ahu and recently retired after a career as Recreation Director with the City and County of Honolulu.

He and his wife, Jamie, a retired educator, have two daughters. Kristi is a professor of Sports Management at Belmont University while Kacie is pursing a Master's degree in Counseling Psychology at Chaminade.