Helgi Sveinsson (born 11 June 1979) is a Paralympian athlete from Iceland competing in throwing, sprint and jumping events.

At the 2013 IPC Athletics World Championships he threw a competition record to take the gold medal.

[1] At the same Championships he also finished third in the 200m, but did not medal due to the low level of athletes competing in the event.

After the 2012 Paralympics Sveinsson was reselected for Iceland when he made the squad for the 2013 IPC Athletics World Championships held in Lyon, France.

At the World Championships, he only entered the javelin throw and was faced with a strong field including Paralympic medalists Fu Yanlong of China and Runar Steinstad of Norway.