Who scored hattrick in fifa world cup final?
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Who scored a hat trick in a FIFA men's world cup final?
Ademir and Geoff Hurst
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Who scored a hat trick in a FIFA women's world cup final?
Carli Lloyd
List of FIFA World Cup hat-tricks
https://en.wikipedia.org/wiki/List%20of%20FIFA%20World%20Cup%20hat-tricks
A hat-trick occurs when a player scores three or more goals in a single match and it is considered an achievement, especially while playing at the largest international football tournament in the world. 
List of FIFA World Cup hat-tricks
He played in the 1945, 1946, 1949, and 1953 editions of the tournament, scoring 13 goals in 18 appearances in the competition, including a tournament-winning hat-trick in the final play-off against Paraguay in 1949.
Ademir de Menezes International career
Hurst thus became the first player to score a hat trick in a World Cup final – a feat since matched by only one other player, male or female: Carli Lloyd, who did so for the United States against Japan in the 2015 FIFA Women's World Cup Final in Vancouver.
Geoff Hurst World Cup Final
A hat-trick occurs when a player scores three or more goals in a single match and it is considered an achievement, especially while playing at the largest international football tournament in the world. Many players have scored a hat trick in their career, with a couple being Ademir and Geoff Hurst. Ademir played in the 1945, 1946, 1949, and 1953 editions of the tournament, scoring 13 goals in 18 appearances in the competition, including a tournament-winning hat-trick in the final play-off against Paraguay in 1949. Hurst became the first player to score a hat trick in a World Cup final – a feat since matched by only one other player, male or female: Carli Lloyd, who did so for the United States against Japan in the 2015 FIFA Women's World Cup Final in Vancouver.