El Castillo del Terror (2010) was a professional wrestling event, the fifth annual El Castillo del Terror event, produced by the International Wrestling Revolution Group (IWRG). IWRG has held an Castillo del Terror branded show since 2005, usually late in the year, making this year's event the fifth overall event in the series. The event took place on November 1, 2009, at Arena Naucalpan in Naucalpan, State of Mexico, IWRG's main arena. The main event was the eponymous Castillo del Terror Steel cage match where the last person eliminated was forced to unmasked per the match stipulation. In the end the ten-man match saw Oficial 911 defeat Yack, forcing him to unmask after the match.

El Castillo del Terror (2010) was a major annually occurring professional wrestling event produced by the International Wrestling Revolution Group (IWRG) that took place on November 4, 2010. The event was the tenth show held under the El Castillo del Terror banner, with the first taking place in 2000. The main event was the eponymous Castillo del Terror Steel cage match where the last person eliminated would be forced to take off his mask per the match stipulation.