Apamea occidens, the western apamea, is a moth of the family Noctuidae. The species was first described by Augustus Radcliffe Grote in 1878. It is native to western North America as far east as Alberta and Kansas.

  • . North American Moth Photographers Group. Mississippi State University.
  • . University of Alberta Museums. E.H. Strickland Entomological Museum.
  • McLeod, Robin (August 26, 2007). . BugGuide.