Lorenzo Lamas -- I'm Taking My Wife's Name!

It's the name that once made millions of middle-aged soap opera fans weak in the knees ... but it will soon be gone forever -- because TMZ has learned, Lorenzo Lamas is taking his new wife's last name.


Lorenzo wed Shawna Craig this weekend in Mexico -- and his rep tells us, Lorenzo wants "to start over fresh" from all his previous marriages and divorces (four of 'em) ... and desperately wants a change.

So, Lorenzo is going to reverse the tradition and take her name ... making him Lorenzo Craig.

Doesn't really have the same ring to it.