Kirsten Dunst -- Protect Me From Obsessed French Stalker

Kirsten Dunst got a protection order today against a 51-year-old French man she claims has flown to the U.S. more than 5 times to see her -- and even confronted Kirsten's mother on her doorstep.

An L.A. County Superior Court Judge granted Kirsten a temporary restraining order against Jean Christophe Prudhon -- who, according to the docs sent dozens of letters to Kirsten, and tried to call Kirsten directly hundreds of times.

According to Kirsten's mom ... one of Prudhon's letters said he "came across the oceans 5 times to try and meet you, always frustrated by fate who took you away each time."

In the docs, Kirsten accuses Prudhon of flat out haunting her -- saying he's admitted sitting in his car outside her home 10 times, and on one occasion walked up to her doorstep and confronted her mother.