Lori Mattix, sometimes known as Lori Maddox or Lori Lightning, is an American former child model and "baby" groupie of the 1970s. She is perhaps best known for an interview with Thrillist in 2015 in which she made allegations of being involved in sexual relationships with David Bowie, Jimmy Page, and Mick Jagger; these are relationships which would have occurred while she was underage and while the musicians were in their twenties, although her connections to Bowie and Jagger are disputed.

Her experience has been discussed in the Me Too movement, with her story marking a shift of the movement's focus from the film industry to the music industry.