WGIR-FM is a radio station in Manchester, New Hampshire, airing a mainstream rock format, branded as Rock 101 in 1979. The station is owned by iHeartMedia, Inc., formerly Clear Channel Media, America's largest owner of radio stations. According to Arbitron, ROCK 101 is currently the #2 rated radio station in the Manchester radio market  behind 95.7 WZID. The morning show, Greg and the Morning Buzz, is shared with co-owned 100.3 WHEB in Portsmouth, New Hampshire and is one of the leading morning shows in New Hampshire also reaching into Massachusetts.
WGIR-FM first went on the air in June 1963, under the ownership of Knight Quality Stations, Inc. At first, it simulcast co-owned 610 WGIR (AM) with a mix of middle of the road (music), news and information. The 1970s saw WGIR-FM adopt a soft rock format including artists such as Fleetwood Mac, Linda Ronstadt, James Taylor and Carole King. By the 1980s, the station's sound evolved into a more mainstream Album-oriented rock format. From the 1990s to the early 2000s, WGIR-FM played mostly Classic rock. Saturdays and Sundays often were called "Block Party Weekends" where three or four songs were played in a row from the same classic rock artist. In the early 2000s, the station moved to a harder-edged rock format featuring current and past rock acts.