The shock-rocker reportedly proposed to the True Blood actress while he was performing on stage in Paris on Monday, according to reports. Rumors have been swirling for days about the famously on-again, off-again couple's engagement.
Reps for both Manson and Wood have remained mum on the subject.
Manson, 41, began dating Wood, 22, in 2006 but the couple broke up in 2008. They briefly reconciled, then split again before getting back together.
Last year, Manson revealed that he was so devastated over his breakup with Wood that he obsessed about the actress and called her incessantly. After they worked things out, Manson was quoted by the Herald Sun as saying that Wood has helped him be a better person.
"Me being me at my best is what I need to be," he said at the time. "That really paid off because I'm back with Evan."
Wood, for her part, described Mason to Elle magazine in 2007 as a "lovely, really human and just amazing. It may surprise you just how healthy and loving our relationship is."
Manson was previously married to burlesque dancer Dita Von Teese.
With reporting by JENNIFER GARCIA