Sylwia Jaśkowiec (born March 1, 1986 in Myślenice) is a Polish cross-country skier who has competed since 2002. At the 2010 Winter Olympics in Vancouver, she finished sixth in the 4 x 5 km relay, ninth in the team sprint, 25th in the 30 km, 28th in the 10 km, and 34th in the 7.5 km + 7.5 km double pursuit event.
At the FIS Nordic World Ski Championships 2009 in Liberec, Jaśkowiec finished sixth in the 4 x 5 km relay, 31st in the individual sprint, 31st in the 7.5 km + 7.5 km double pursuit, and did not start in the 30 km event.
Her best World Cup finish was ninth in the 4 x 5 km relay in France in 2008 while her best individual finish was 23rd twice.