Rathole

Rathole or Rat Hole may refer to:
 * Rathole, Edmonton, a former two-lane tunnel in Edmonton, Alberta, Canada
 * Rat Hole, Gaping Gill
 * Chicago rat hole, a rat-shaped hole in a sidewalk in Chicago, Illinois
 * Rat-hole mining
 * removing chips inappropriately from the table in poker
 * an audio file archiving tool in Soundfont
 * a jingle on the show MacBreak Weekly
 * a channel on EFNet IRC
 * a method of money laundering
 * a section of the Cincinnati, New Orleans and Texas Pacific Railway