Entrena is a municipality in the La Rioja region of northern Spain, located near the regional capital, Logroño. It covers an area of 21.03 square kilometres, and its population in January 2010 was 1,503. The town nucleus sits at an altitude of 558 metres.
Entrena is bordered by Navarrete and Lardero to the north, Albelda de Iregua to the east, Nalda, Sorzano and Sojuela to the south, and Medrano to the west. Its position near Logroño places it within the immediate orbit of the regional capital.