lindsaydateold.jpgLindsay Lohan finally has a real date with a guy!

No, it's not the cute French, Aurelien Wiik ... it's a 77 year-old Austrian entrepreneur named Richard Lugnar -- what??!!

Lugnar has invited Lindsay to be his date for the famous Vienna Opera Ball to take place next month. The sexy (we hope!) senior is known for choosing younger, famous women to accompany him to the ball -- he's been escorted by Nicolette Sheridan, Paris Hilton, and Dita Von Teese in the past.

So mark it on your calendar, Linds! -- Feb. 11, Vienna, Austria -- don't be late!