Jukka Vastaranta (born 29 March 1984) is a Finnish professional cyclist from Tampere. From 2003 to 2006 he rode for the Dutch team Rabobank but in 2007 he switched to the Belgian continental team Jartazi–Promo Fashion. In 2008 he rode for the mountain bike team Brink-Ten Tusscher, but after a good start had to retire again due to prolonged health problems.

After settling back to Finland, in late 2008 he finally found some help for the health problems he had suffered from past several seasons. In 2009, he significantly got better and won all Finnish mountain bike races that he took part in and finished 36th in MTB Marathon World Championships.

Jukka started the season 2010 without a team, but had a short contract with SP Tableware, a Greek Continental-level road team, but was in strong form. He finished 4th in MTB Marathon European Championships and took some important victories in Europe. In July, the first MTB XC Olympic Champion Bart Brentjens contacted Jukka to join his professional team, Trek-Brentjens MTB Racing Team.