The fifth series of the British version of The Masked Singer premiered on ITV on 30 December 2023, following a Christmas special episode on 25 December. Joel Dommett returned as the show's presenter, whilst Mo Gilligan, Davina McCall, Rita Ora and Jonathan Ross returned as panellists. The series is the second in a two-year commissioning by ITV.
The series was won by singer Danny Jones as "Piranha", whilst TV presenter Alex Brooker finished second as "Bigfoot" and singer Lemar finished third as "Cricket".
The commissioning of the fifth series was announced by ITV in February 2022, alongside the fourth series as part of a two-year contract. Filming for the series took place in October 2023 at Bovingdon Studios in Hertfordshire, with the public being invited to apply for tickets to be in the audience. The series began airing on 30 December 2023, following the show's first Christmas special episode that aired on 25 December and as in second series, would begin prior to the New Year.
Prior to the series airing, it was announced that Joel Dommett would return as presenter, with Jonathan Ross, Davina McCall, Rita Ora and Mo Gilligan all returning to the panel. However, owing to Ora's scheduling conflicts with the eleventh season of the American version, in which she replaced Nicole Scherzinger, it was confirmed that Charlie Simpson, who won the previous series as "Rhino", Olly Murs and Jennifer Saunders would serve as guest panellists in her place for three episodes, with Simpson in the season premiere, Murs in the third episode and Saunders in the fourth episode. Ellie Goulding served as a guest panellist in the fifth episode. Lenny Henry, who appeared in the second series as "Blob", served as a guest panellist in the sixth episode. Lorraine Kelly, who was revealed as "Owl" in the fifth episode, served as a guest panellist in the semi-final. Rob Brydon served as a guest panellist in the final.
The twelve costumes for the fifth series were released on 10 December 2023.
After being unmasked, Tiffany performed her cover of "I Think We're Alone Now" as her encore.
Official ratings are taken from BARB, utilising the four-screen dashboard which includes viewers who watched the programme on laptops, smartphones, and tablets within 7 days of the original broadcast.