"Christmas Time" is a song by Canadian rock singer-songwriter Bryan Adams. It was written by Adams and Jim Vallance and became Adams' most popular Christmas song. It was originally released on clear, green vinyl with a picture sleeve. It was written and recorded in Vancouver, British Columbia, Canada. No music video was shot for the song. Over thirty years after it was first recorded, the song still receives significant radio airplay each year during the Christmas season.

The B-side is "Reggae Christmas", written by Jim Vallance in 1978 after a chance meeting with Ringo Starr. Although Starr never recorded it, Adams went on to do his version in 1984, adding a new bridge section. It was first released as a fanclub-only single on colored vinyl in December 1984, with a Christmas message by Adams and his band on the B-side (entitled "Plum Pudding"). Subsequently, "Reggae Christmas" ended up as the B-side to all pressings of "Christmas Time", from 1985 onwards. There was a live video made by MTV for its "Reggae Christmas", featuring a guest appearance by Pee Wee Herman.

Despite being listed as a bonus track to the 1983 album Cuts Like a Knife on the Bryan Adams website, there is no official version of the album with "Christmas Time" on it. The song has in fact been absent from any official Bryan Adams release thus far, alike its B-side "Reggae Christmas".

The song is, however, available on these compilation albums:

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