Fios

Fios may refer to:


 * Fíos, a parish in Parres, Spain
 * Verizon Fios, bundled home communications service offered by Verizon Communications in the US
 * FiOS from Frontier, the former name for Frontier FiberOptic, a bundled home communications service offered by Frontier Communications in the US
 * FiOS1, a defunct news-based pay television network carried by Verizon Fios in the New York metropolitan area
 * FIoS, after a name denotes Fellow of the Institute of Swimming