A trailer may be:

• Trailer (vehicle), an unpowered vehicle pulled by a powered vehicle
• Mobile home
• Trailer (film), an advertisement, usually in the form of a brief excerpt or string of excerpts, for a new film
• Teaser trailer, a truncated version of a theatrical or film trailer
• Trailer (information technology), data appended to a main block of data to facilitate its processing

Trailer | Trailer | Trailer | Trailer