Postman Pat 3 is a VHS release of Postman Pat. It was released on 3rd November 1986 (the same date as Postman Pat 1 and Postman Pat 2) by BBC Video, and was re-released in 1999 on Postman Pat - More Adventures From Pat And His Friends.
- The third and final Postman Pat video that were released on the same day as the first two volumes to feature the BBC Video 1981-1988 Ident.
- The videocover of Postman Pat 3 got repackaged on 2nd April 1990 with a BBFC Uc rated certificate and a "Win a Party with Postman Pat" flap on the inside whilst the rest of the cover and the tape itself remained the same as the original 1986 release. It also happens on Postman Pat 1 and Postman Pat 2, both were released on that same day.
- The videocover of Postman Pat 3 got new packaging for a re-released edition in 1992, to which the boarder round the image on that cover was dark blue instead of green. The packaging on the cover featured Pat with some parcels above the 1992-1994 BBC Children's Video logo on the spine, the white Postman Pat 3 logo with dark blue lining and yellow shadow on the whole cover and pictures of Postman Pat 1 and Postman Pat 2 side by side on the back cover.
- The tape of Postman Pat 3 got repackaged in 1992 with the BBC Video 1991-1997 Ident, a BBC Video slide with four other Postman Pat titles that are also available, a title card for "Postman Pat 3" (with a still image of Pat and Jess in the van from "Pat's Thirsty Day") and different footage for the episodes (with title logos at the start of each episode) on that video.