Polgár or Polgar may refer to:

• Polgár, Hungary, a city in Hungary

• Alfred Polgar (1873–1955), Austrian journalist
• Franz Polgar (1900–1979), Hungarian psychologist, hypnotist, lecturer and entertainer
• Gyula Polgár (1912–1992), Hungarian footballer
• François Polgár (born 1946), French choir conductor
• Jorge Polgar (born 1967), Uruguayan economist
• László Polgár (born 1946), Jewish Hungarian chess teacher, father of the Polgár sisters
  • The Polgár sisters, three chess players who are siblings:
    • Susan Polgar (born 1969), Hungarian-American chess player
    • Sofia Polgar (born 1974), Hungarian-Israeli chess player
    • Judit Polgár (born 1976), Hungarian chess player
• László Polgár (bass) (1947–2010), Hungarian operatic bass singer
• Peter Polgár (born 1976), Slovak footballer
• Thomas Polgar (1922–2014), Hungarian-American CIA officer
• Tibor Polgár (1907–1993), Hungarian composer