"I Wish It Could Be Christmas Every Day" is a Christmas song recorded by British glam rock band Wizzard. It was first released in December 1973 and, as with most Wizzard songs, was written and produced by the band's frontman Roy Wood—formerly of The Move and a founding member of Electric Light Orchestra. Despite the song's strong, long-lasting popularity, it has reached no higher than number four on the UK Singles Chart, a position it occupied for four consecutive weeks from December 1973 to January 1974.^[1][2] The song was beaten to the 1973 Christmas Number 1 spot by Slade's "Merry Xmas Everybody", which remained at the top of the charts for five weeks, from December 1973 to January 1974.

Wood sings lead vocals. The backing vocals for the single are by the Suedettes, augmented by the choir of Stockland Green School First Year.^[3] The original sleeve of the single credits "Miss Snob and Class 3C" with "Additional noises". The basic track for the single was recorded in August 1973, so to create a wintry feeling engineer Steve Brown decorated the studio with Christmas decorations and turned the air conditioning down to its coldest setting. Wood wore a woollen hat found in lost property. The schoolchildren were brought down from the Midlands to London by bus during the autumn half-term to add their contributions.^[4]

At the time of the single's release, Wizzard's contract with EMI was close to expiration. Promotional copies were pressed by Warner Bros., with whom the band had just signed for future releases. Only then was it discovered that EMI were legally entitled to the track after all, so the Warner Bros. Records pressings were halted and the record appeared on the Harvest label, but with the same picture sleeve.^[4] In a UK television special on ITV in December 2012, the British public voted the song second (behind "Fairytale of New York") in The Nation's Favourite Christmas Song.^[5]

The video shows the band dressed up in a winter-themed studio and then joined by a group of children who play instruments and join in with the singing.

As it was kept from number one by Slade's "Merry Xmas Everybody" it was decided to re-release the single in 1981. It was then found that the original tapes had been lost, so the song was re-recorded by the band and a new choir, from Kempsey Primary School in Worcester, was used (they had appeared on Roy Wood's solo single "Green Glass Windows" earlier that year).^[6] The single reached number 41 on the UK Singles Chart, and was released again in 1984, this time with an additional extended 12-inch version, getting as far as number 23.

As downloads became eligible for the weekly Top 75 from January 2007 onwards, and with exposure thanks to an Argos television advertisement, the song charted again in November and December 2007, this time reaching number 16. In the week of 13 December 2008, the song peaked at number 31. In the week of 14 December 2009, it peaked at number 45. In the week of 11 December 2010, it peaked at number 46. In the week of 12 December 2011, it peaked at number 28. It has appeared in the British top 40 every Christmas since and in the top 25 every Christmas since 2017.