Tatjana Zavalij (born September 24, 1981) is a Ukrainian cross country skier who has competed since 2000. Competing in two Winter Olympics, she earned her best finish of eighth in the 4 x 5 km relay at Turin in 2006 and earned her best individual finish of 22nd in the 30 km event at Vancouver four years later.
Zavalij's best finish at the FIS Nordic World Ski Championships was 41st in the 10 km event at Oberstdorf in 2005.
Her best World Cup finish was 40th twice, earning once in 2004 and the other in 2006.