Ottignies-Louvain-la-Neuve Ocgniye-Li Noû Lovén (Walloon)
Municipality
The Town Hall
Flag Coat of arms
Location of Ottignies-Louvain-la-Neuve
Ottignies-Louvain-la-Neuve Location in Belgium The municipality of Ottignies-Louvain-la-Neuve in Walloon Brabant
Coordinates: 50°40′N 04°30′E / 50.667°N 4.500°E / 50.667; 4.500
Country	Belgium
Community	French Community
Region	Wallonia
Province	Walloon Brabant
Arrondissement	Nivelles
Government
• Mayor	Julie Chantry (Ecolo)
• Governing party/ies	Ecolo-Avenir-PS
Area
• Total	33.4 km2 (12.9 sq mi)
Population  (2018-01-01)[1]
• Total	31,385
• Density	940/km2 (2,400/sq mi)
Postal codes	1340-1342, 1348
NIS code	25121
Area codes	010
Website	www.olln.be

Ottignies-Louvain-la-Neuve (French pronunciation: [ɔtiɲi luvɛ̃ la nœv] ^ⓘ; Walloon: Ocgniye-Li Noû Lovén) is a city and municipality of Wallonia located in the Belgian province of Walloon Brabant. On January 1, 2006, Ottignies-Louvain-la-Neuve had a total population of 29,521. The total area is 32.96 km² which gives a population density of 896 inhabitants per km².

The municipality consists of the following sub-municipalities: Ottignies, Louvain-la-Neuve, Céroux-Mousty, and Limelette. Louvain-la-Neuve (sometimes abbreviated as "LLN") is a new town developed from 1968 in order to provide a home for the University of Louvain (UCLouvain), the French-speaking part of the former Catholic University of Louvain on its separation from the Dutch-speaking part, which remained in the ancient city of Louvain (Leuven).

Created in 1971, Louvain-la-Neuve Science Park is the first of its kind in Belgium and is the biggest one in Wallonia (the French-speaking part of Belgium). It covers 231 hectares (570 acres) spread over the area of the town of Ottignies-Louvain-la-Neuve and the municipality of Mont-Saint-Guibert (30 kilometres (19 mi) away from Brussels).

• 
  Faculty of Theology, Université catholique de Louvain
• 
  Louvain-la-Neuve Science Park

The Lhoist group, world leader in the lime, dolime and mineral solutions, has its head office in Ottignies-Louvain-la-Neuve (Limelette).

Ottignies-Louvain-la-Neuve is home to the Royal Ottignies Stimont football club (soccer)^[2] and the Rugby Ottignies Club (rugby).^[3]

• Media related to Ottignies-Louvain-la-Neuve at Wikimedia Commons
• Municipality Website
• The Louvain-la-Neuve Science Park website
• Louvain-la-Neuve WebTV
• Facebook group for residents of Ottignies-Louvain-la-Neuve
• Chisholm, Hugh, ed. (1911). "Ottignies" . Encyclopædia Britannica (11th ed.). Cambridge University Press.