Jyrki Juhani Järvilehto (Finnish pronunciation: ['jyrki 'jærvilehto]; born 31 January 1966), better known as "JJ Lehto", is a Finnish racing driver.
He won the 24 Hours of Le Mans twice, in 1995 and 2005.
He is also a former Formula One driver.
He was a protégé of Finnish 1982 Formula One World Champion Keke Rosberg, who first suggested that Jyrki Järvilehto should abbreviate his name to the more manageable JJ Lehto, much as Rosberg had done before him ("Keke" being derived from Keijo, his own given name).