Helena Javornik (born 26 March 1966, in Celje) is a Slovenian long-distance runner who has specialized in all distances from 1500 metres to the marathon race.
She holds the current national record in 10,000 m with 31:06.63 minutes, achieved at the 2004 Summer Olympics.
She won the Ljubljana Marathon three times consecutively between 1996 and 1998.
She tested positive for EPO in March 2008 and was banned for two years by the International Association of Athletics Federations in June 2008.
The ban was upheld by the Court of Arbitration for Sport; she became eligible to compete again in June 2010 at the age of 44 years.