Montmorency may refer to:

• Montmorency (character), the protagonist of the Montmorency series
• Montmorency (novel), 2003, the first novel in the Montmorency series
• Montmorency, a fictional dog in Jerome K. Jerome's novel Three Men in a Boat
• Montmorency series, Victorian-era London suspense fiction books by Eleanor Updale

• Anne de Montmorency (1493–1567), French soldier, statesman and diplomat
• Charles I de Montmorency (d. 1381), French soldier
• Floris of Montmorency (1528–1570), noble and diplomat from the Spanish Netherlands
• Henri II de Montmorency, (1595–1632), French noble and Viceroy of New France
• Philip de Montmorency (1524–1568), Count of Horn, Belgian born statesman from the Spanish Netherlands
• Rachel de Montmorency (1891–1961), English painter and stained glass artist
• Raymond de Montmorency (1867–1900), Canadian-born British Army officer and member of Anglo Irish family

• Montmorency, Victoria, suburb of Melbourne
  • Montmorency railway station, Melbourne

• Montmorency River, a tributary of St. Lawrence river in Capitale-Nationale, Quebec
  • Montmorency Falls, Quebec
  • Montmorency Forest, protected forest in Capitale-Nationale, Quebec
• Collège Montmorency, also known as Cégep Montmorency, a Francophone public college in Laval, Quebec
• Parc Montmorency, a park located in Quebec City and home to the Parliaments of Lower Canada, Canada East and Quebec from 1791 to 1883
• Montmorency station (Montreal Metro), a Montreal Metro station in Laval-des-Rapides, Laval, Quebec, serving the Orange Line
• Montmorency (federal electoral district), Quebec
• Montmorency (provincial electoral district), Quebec
• Montmorency, Quebec, a former municipality amalgamated in 1976 to form Beauport, Quebec City

• Montmorency, Val-d'Oise, Val-d'Oise département
• Soisy-sous-Montmorency, Val-d'Oise département
• Montmorency-Beaufort, Aube département
• Rue de Montmorency, Paris

• Montmorenci, Indiana
• Montmorency County, Michigan
• Montmorency Township (disambiguation)

• Montmorency station (Montreal Metro), a subway station Laval, Quebec, Canada
• Montmorency railway station, Victoria, in Montmorency, Victoria, Australia

• Duke of Montmorency, a title that was created several times for members of the Montmorency family
• House of Montmorency, one of the oldest noble families in France
• Montmorency cherry, a variety of sour cherry