"Lonely This Christmas" is a Christmas song by the English glam rock band Mud, that topped the UK Singles Chart in 1974,^[2] selling over 750,000 copies and reaching Christmas number one.

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Written and produced by Nicky Chinn and Mike Chapman, "Lonely This Christmas" was Mud's second number one single in the UK, spending four weeks at the top in December 1974 and January 1975.^[2][3] It was the third number one single that year for the ChinniChap writing and production team, and was performed in the style of Elvis Presley's slower songs from his later career.

The song is noted for a performance on Top of the Pops in which guitarist Rob Davis was covered in tinsel and wore Christmas baubles as earrings, while vocalist Les Gray sang to a ventriloquist's dummy.