Isaac Gálvez López (20 May 1975 in Vilanova i la Geltrú, Spain – 26 November 2006 in Ghent) was a Spanish track and road racing cyclist who rode for Caisse d'Epargne-Illes Balears in the UCI ProTour. He died during the 66th Six Days of Ghent cycling event in Belgium after colliding with Dimitri De Fauw and crashing against the railing. He died from internal bleeding. At the time of the accident, he had only been married for three weeks. After this, De Fauw suffered from depression and he committed suicide on 6 November 2009.

After the second stage of the 2007 edition of the Vuelta a Murcia was cancelled due to strong winds, the organisers dedicated the day's prizes to Gálvez in his memory. Gálvez's sister Débora Gálvez is also a racing cyclist.

Gálvez competed for Spain at the 2000 Summer Olympics.