FRANKFURT — He picked the wrong victim.

A stupid sicko emailed a photo of his genitals to a German Olympic high jumper — who happens to be a police officer by profession.

In retaliation, furious sports ace Ariane Friedrich named and shamed the stalker on Facebook. She also plans to bring charges against him, press agency DPA reported.

Friedrich, the bronze medalist at the 2009 World Championships in Berlin, said she posted the man’s name, email address and home address on her page as “a way of making clear that I am prepared to act.”

“I’ve been offended in the past, sexually harassed and I’ve had a stalker before,” said the 28-year-old.

“It’s time to act, it’s time to defend myself. And that’s what I’m doing. No more and no less.”