Jarno Trulli (born July 13, 1974 in Pescara, Abruzzo) is an Italian Formula One auto racing driver currently driving for the Toyota team.

His parents were motorsport fans and named their son after Jarno Saarinen, the Finnish Grand Prix motorcycle racing champion who had been killed at Monza in 1973. This Finnish forename caused a certain amount of confusion when he first entered Formula One, with many not initially realising that he was Italian. His father's enthusiasm also meant that, like many successful racers, he was involved in karting from an early age.

After winning the Italian and then European kart championships he won the German Formula Three championship in 1996, and in 1997 made his debut in F1 with Minardi. After 7 races he replaced the injured Olivier Panis at Prost and impressed immediately, finishing fourth in Germany and even leading in Austria, looking set to finish second until his engine blew. He stayed at the Prost team for the next two seasons and eventually scored his first podium in wet conditions at the 1999 European Grand Prix. However, this was a rare highlight in a race few of the main front-runners finished, and the poor performance of the Prost team convinced him that a switch to Jordan would bring improved results.