Olesa de Montserrat is a municipality in Spain, in the province of Barcelona, in Catalonia. On 1 January 2025 it had 24,966 inhabitants according to the INE municipal register (padrón), over an area of about 18.6 km².
Density, at about 1,342 inhabitants per km², is that of a populous urban area, with residential districts, services and businesses. Of the 134 municipalities in the province of Barcelona with at least 5,000 inhabitants, it is number 41 by population.
As the crow flies it lies about 27 km north-west of Barcelona, the provincial capital. The nearest major city is Barcelona, about 30 km away.
Nearby, within a few dozen kilometres, are other destinations featured in our guides: Terrassa (9 km), Sabadell (17 km), Lifestyle (27 km), 10 things to see (28 km), Shopping (28 km).
To explore the area, use the map of neighbouring municipalities and the accommodation options in and around Olesa de Montserrat; all the municipalities in the province of Barcelona are listed on their own page.