Karel Tilga (born 5 February 1998) is an Estonian athlete who competes in the decathlon.

Tilga was born in Valga[1] and grew up in Puka until the eight grade, when the family moved to Tartu.

[2] He attended school at Tartu Kristjan Jaak Petersoni Gymnasium before enrolling at the University of Georgia, graduating in 2022.

[1] In 2021 he won for Georgia Bulldogs (men) their fifth ever NCAA individual title (second in the heptathlon) by scoring a school record 6,264 to win the heptathlon at the NCAA Championships with the No.

[1] He competed in Paris at the 2024 Summer Olympics in the decathlon, finishing in eleventh place overall.