Katalin is a feminine given name and is a Hungarian variant from Catherine. Notable people with the name include:

• Katalin Bánffy Hungarian noblewoman
• Kata Bethlen (1700–1759) Hungarian writer, sometimes known in English as Katherine Bethlen
• Katalin Bogyay (born 1956) President of the General Conference of UNESCO
• Katalin Cseh (born 1988) Canadian-born Hungarian physician and politician
• Katalin Csőke (1957–2017) Hungarian discus thrower
• Katalin Divós (born 1974) Hungarian female hammer thrower
• Katalin Eichler-Schadek (born 1940) Hungarian volleyball player
• Katalin Juhász (born 1932) Olympic gold medalist of Hungary
• Katalin Karády (1910-1990) as a Hungarian actress and singer
• Katalin Kariko (born 1955) Hungarian scientist who, with Drew Weissman, developed the technology behind the COVID-19 mRNA vaccines
• Katalin Kovács (born 1976) Olympic medalist of Hungary
• Katalin Laki (born 1948) Hungarian handball player
• Katalin Lévai (born 1954) Hungarian politician and Member of the European Parliament
• Katalin Makray (born 1945) Hungarian former gymnast
• Katalin Marosi (born 1979) Hungarian professional tennis player
• Katalin Nagy (born 1979) Hungarian ultramarathon runner
• Katalin Novák (born 1977) Hungarian politician, President of Hungary
• Katalin Pálinger (born 1978) former Hungarian international team handball goalkeeper
• Katalin Szabó (born 1967) Romanian artistic gymnast
• Katalin Szili (born 1956) Speakers of the National Assembly of Hungary
• Katalin Szőke (1935–2017) is a Hungarian swimmer and Olympic champion
• Katalin Vad (born 1980) Hungarian female pornographic film actress
• Katalin zu Windisch-Graetz (born 1947) Hungarian aristocrat and designer
• Catherine of Hungary, Queen of Serbia (1256–1314) daughter of Stephen V of Hungary
• Catherine of Hungary, Duchess of Świdnica (1338–1343 or 1345-1355) daughter of Charles I of Hungary
• Catherine of Hungary (1370–1378) (1370–1378) daughter of King Louis the Great