Saint Nicholas was a 4th-century saint and Greek Bishop of Myra.

Saint Nicholas or Saint Nick may also refer to:

• Santa Claus or Saint Nicholas, a western folk legend inspired by the saint
• Sinterklaas or Sint-Nicolaas, the Dutch variant of the folk legend
• Saint Nicholas, a gift-bringing figure in Europe
• Saint Nicholas Day, the feast day of the saint

• Nicholas (died 320), one of the Forty Martyrs of Sebaste
• Nicholas of Sion (died 564) early Christian saint
• Nicholas the Pilgrim (1075–1094), also known as Nicholas of Trani, fool for Christ

• Nicholas Kabasilas (c. 1322–1392), Byzantine mystic, theological writer and priest
• Nicholas of Lesvos (died 1463), Greek deacon and new martyr
• Nicholas of Japan (1836–1912), Russian archbishop and missionary who introduced Eastern Orthodoxy to Japan
• Nicholas II of Russia (1868–1918), also known as Nicholas the Passion-Bearer, last emperor of Russia
• Nicholas of Ohrid and Žiča (1881–1956), also known as Nikolaj Velimirović, Serbian bishop and writer

• Pope Nicholas I (c. 800–867), also known as Nicholas the Great, bishop of Rome from 858 to 867
• Nicholas of Tolentino (c. 1246–1303), Italian mystic
• Nicholas of Flüe (1417–1487), Swiss hermit and ascetic
• Nicholas Pieck (1534–1572), Dutch martyr
• Nicholas Owen (martyr) (c. 1550–1606), English martyr
• Niels of Aarhus (before 1157–1180), Danish prince

• Saint Nicholas Peak (Canada), Alberta and British Columbia, Canada
• St. Nicholas, Prince Edward Island, Canada
• St. Nicholas, (civil parish, County Galway), a civil parish in the barony of Galway, County Galway, Ireland
• St. Nicholas, (civil parish, County Wexford), a civil parish in the barony of Ballaghkeen South, County Wexford, Ireland
• St. Nicholas, Vale of Glamorgan, Wales
  • St Nicholas and Bonvilston, a Welsh community in Vale of Glamorgan
• St. Nicholas, Jacksonville, Florida, United States
• Mount Saint Nicholas, Montana, United States
• St Nicholas-at-Wade, Kent, England
• Saint Nicholas Avenue (Manhattan), New York City, United States
• St. Nicholas Cove, Coronation Island, Antarctica
• St Nicholas Hurst, a civil parish in Berkshire, England
• St. Nicholas's Island, a former name of Drake's Island, Plymouth Sound, England

• Saint Nicolas, a 1948 cantata with music by Benjamin Britten and text by Eric Crozier
• St. Nicholas Centre, a shopping centre in Aberdeen, Scotland, now part of the Bon Accord Centre
• St. Nicholas, a children's magazine published in the United States (1873–1943)
• Botik of Peter the Great or Saint Nichols, a miniature warship
• Sint or Saint Nick, a 2010 Dutch comedy horror film

• St. Nicholas Church (disambiguation), includes pages without "Church" in their names
• Saint Nicholas Monastery (disambiguation)
• Saint Nicolas (disambiguation)
• San Nicola (disambiguation)
• San Nicolás (disambiguation)
• São Nicolau (disambiguation)
• Sveti Nikola (disambiguation)
• Agios Nikolaos (disambiguation)
• All pages with titles containing Saint Nicholas
• All pages with titles containing St Nicholas
• Nicholas (disambiguation)