Regnier
Régnier or Regnier is a French given name, personal name and surname, and may refer to:
Surname
- Adolphe Regnier (1804-1884), French linguist
- Anatol Regnier (* 1945), German classical guitarist and writer
- Charles Regnier (1914–2001, father of Anatol Regnier), German actor
- Claude Ambroise Régnier (1746–1814), French lawyer and politician
- Émile Régnier (1894–1940), French World War I pilot
- Eva Regnier (born 1971), American decision scientist
- Henri de Régnier (1864–1936), French symbolist poet
- Marc Regnier (born circa 1960), American classical guitarist
- Mary Pius Regnier (1914–2005), American nun and former general superior of the Sisters of Providence of Saint Mary-of-the-Woods, Indiana
- Mathurin Régnier (1573–1613), French satirist
- Michel Régnier (1931–1999), "Greg", Belgian comics writer and artist
- Natacha Régnier (born 1974), Belgian actor
- Nicolas Régnier (1591–1667), Flemish painter and art collector
- Paule Régnier (1888–1950), French writer
- Victor Régnier (1889–1966), French World War I pilot
Personal name
- Regnier I, Count of Hainaut (850-915), son of Gislebert, Count of Darnau and Ermengarde of Lorraine
- Regnier II, Count of Hainault (born 890), son of Regnier I, Count of Hainaut and Hersent of France
- Regnier III, Count of Hainaut (circa 920–973), son of Regnier II, Count of Hainaut
- Regnier de Graaf (1641–1673), Dutch physician and anatomist
Other
- Régnier Motor Company, an aircraft engine manufacturer founded by Émile Régnier
