Trailers are videos uploaded onto YouTube as a form of teaser for Five Nights at Treasure Island. On March 31st, 2015, Matthew Phoenix Rodriguez confirmed that a trailer will be released either April 1st or April 2nd. Later on April 1st, 2015, Matthew confirmed that there will be at least two trailers for Five Nights at Treasure Island, and that the first trailer will contain no real gameplay whatsoever.

At 00:30 (UTC) on April 2nd, 2015, the first trailer was released. It was uploaded on YouTube to the channel Purity Sinners.

During a Livestream on July 9th the Second Trailer was released and uploaded on youtube the same night. It was said that R3draw made the trailer during the stream.