The Ferrari driver, 21, lost the lead of the Bahrain Grand Prix after being overtaken by Mercedes drivers Lewis Hamilton and Valtteri Bottas.
It was due to engine issues on Leclerc’s car and Hamilton eventually romped to victory.
The Monaco-born is challenging for the Formula One title with his stunning girlfriend cheering him on.
Leclerc is a former F2 and GP3 champion and made the step up from Sauber to Ferrari after replacing Kimi Raikonen for this season.
“Such a beauty”
His other half, Italian Giada Gianni, is 21-years-old and very little is known about her – though she is very active on Instagram with 22k followers.
And while her boyfriend was in the lead in Bahrain in his Ferrari, she posted two model pics on social media.
She walks across a road in Monaco in one pic whereas in another she shows off her bright red bag: “Class, Dignity and Elegance.”
And her fans rushed to the post to gush about the pics.
One said: “Such a beauty.”
While another wrote: “Looking fresh.”
One more simply added: “Wow, wow, wow.”
The couple started dating back in January 2015 – they’ve been together for over four years.
They are rumoured to be engaged, but neither has confirmed the news.
Leclerc and Gianni post from their holidays and show off their jet-setting lifestyle via social media.
And she’s not afraid to flash the flesh in bikinis on sandy beaches.