| XHHAC-FM | |
| City: | Ciudad Acuña, Coahuila |
| Branding: | La Mejor |
| Airdate: | November 17, 1988 (concession) |
| Frequency: | 100.7 FM |
| Format: | Regional Mexican |
| Erp: | 6,000 watts |
| Sister Stations: | XHPL-FM |
| Class: | A |
| Facility Id: | 94929 |
| Callsign Meaning: | XHH Ciudad ACuña |
| Operator: | RCG Media |
| Owner: | XH Medios |
| Affiliations: | MVS Radio |
| Licensee: | La Grande de Coahuila, S.A. de C.V. |
XHHAC-FM (La Mejor 100.7) is a Regional Mexican radio station in Ciudad Acuña, Coahuila.
XHHAC received its concession on November 17, 1988. It was owned by Ricardo Espejo Munguía and later sold to Grupo RCG. In 2010, the station was sold to Grupo Radio Grande, a new radio group; the owner is now known as XH Medios.
At some point, XHHAC flipped from one grupera format to another, dropping Televisa Radio's Ke Buena for La Mejor from MVS Radio.