Gallagher-Iba Arena, also known as "The Rowdiest Arena in the Country" and "The Madison Square Garden of the Plains”, is the basketball and wrestling venue at Oklahoma State University in Stillwater, Oklahoma, United States. Originally completed in 1938 and named the 4-H Club and Student Activities Building, it was soon renamed Gallagher Hall to honor wrestling coach Ed Gallagher. After renovations in 1987, the name became Gallagher-Iba Arena, as a tribute to longtime basketball coach and innovator Henry Iba.