By LUCY CARNE ( NEW YORK POST )

November 7, 2007 -- This smitten straphanger has put his heart on the subway line.

Brooklyn Heights Web designer Patrick Moberg, 21, is on a quest to track down the "girl of his dreams" with whom he locked eyes on a No. 5 train Sunday night - and he's created an Internet page devoted to finding her.

The pair "shared a moment" while riding the train from Union Square to Bowling Green at about 9:30 p.m., Moberg said.

"She started writing in her journal, and I was intrigued," Moberg told The Post yesterday.

"There's been a ton of pretty girls I've seen of the train, but I just couldn't shake this one."

The self-described shy romantic, who moved to the Big Apple from Nashville, Tenn., this past summer, was working up the courage to speak to the "rosy-cheeked, mysterious brunette," knowing they would both get off at the next stop, the train's last.

But he lost her in the rush of the crowd as everyone stepped off the train.

Moberg's last sighting of his love was her blue stockings and red flower in her hair as she turned a corner in the distance.

Rather than post a Craigslist advertisement to find her again, Moberg went home and created the Web site ( nygirlofmydreams.com ), complete with sketches of the pair together, in hopes of tracking her down.

"I have to somehow let this girl know that was I completely drawn to her," he said. "Something about putting up signs around train stations seemed a bit creepy."

In the past 48 hours, Moberg's Web site has garnered international attention, striking a chord with anyone who has regretted letting possible love slip away.

"I've had so many people wishing me good luck, especially Australians," he said, after the story was posted on one of the most popular news Web sites Down Under.

"It seems as though most people have felt a connection with someone on the subway and regretted not doing anything about it."

Any parallels to singer James Blunt's hit "You're Beautiful," about unrequited subway love, are an "annoying coincidence," Moberg said.

"A friend also pointed out there is some Lance Bass romantic comedy ['On the Line'] about the same thing," he said.

Moberg insists on his Web site that he is "not insane" - although some would say he absolutely is insane for putting his phone number and e-mail address on the site.

"It's a huge long shot, I know," said Moberg, content to leave the situation in the lap of the subway love gods.

"The funniest response I got was someone asking if this was actually an American Apparel advertisement.

"But I plan to leave the Web site up for as long as it takes.

"I'm totally serious about looking for this girl."

p.s: like, wow!!