Blaby is a village in central Leicestershire, England, some five miles south of Leicester city centre. It has population of around 6,240 (2001 figures), and its proximity to the city causes it to form part of the Leicester Urban Area.
Its name probably came Old Norse Blábýr = "farmstead or village belonging to a man named Blár" (where the -r is a case ending). There seems to have been a dense patch of Viking settlement in Leicestershire, although some records in the Blaby Library indicate the origin of the village's name was from the first vicar. Twinned with the village of Villers-sous-Saint-Leu in France.