The Junior Eurovision Song Contest 2024 was the 22nd edition of the Junior Eurovision Song Contest, held on 16 November 2024 at the Caja Mágica in Madrid, Spain, and presented by Ruth Lorenzo, Marc Clotet, and Melani García. It was organised by the European Broadcasting Union (EBU) and host broadcaster Radiotelevisión Española (RTVE). It was the first time that the contest was held in the country. The contest was also the first since 2015 to be held on a Saturday.

Broadcasters from seventeen countries participated in the contest, with Cyprus and San Marino returning after six- and eight-year absences respectively, while the United Kingdom opted not to participate after doing so the previous year.

The winner was Georgia with the song "To My Mom" by Andria Putkaradze, its fourth win and first since 2016. Portugal won the public vote and finished in second place, its best placing to date. Ukraine finished in third place, its best placing since 2013. France finished in fourth place, the first time it placed outside of the top three in four years. Malta finished in fifth place, its best placing since 2018. San Marino finished last on its return.

Unlike the Eurovision Song Contest, the winning broadcaster of the previous year's Junior Eurovision Song Contest does not automatically receive the right to host the next edition. However, since 2011 (with the exceptions of 2012, 2015, and 2018) it has become customary for winners to take on hosting duties, and since 2019, the winning broadcaster has had the right of first refusal on hosting the following competition. In 2015, 2014 winner, Italian broadcaster Radiotelevisione italiana (RAI), was given this right but ultimately opted out of it.

On 27 November 2023, upon its victory in the 2023 contest on home soil, French broadcaster France Télévisions announced that talks would be conducted with the European Broadcasting Union (EBU) regarding the hosting of the 2024 contest, as multiple countries had expressed interest in doing so and it did not want a "French monopoly on Junior Eurovision", having already hosted the event twice in a three-year span; It ultimately opted not to host in 2024. Spanish broadcaster Radiotelevisión Española (RTVE), which had finished in second place in the 2023 contest, was announced as the host for 2024 on 14 February 2024, with the Caja Mágica in Madrid announced as the venue on 10 May 2024. This marked the first time that the contest has been held in the country.

Upon the confirmation of Spain as the host country for 2024, the Generalitat Valenciana announced that it would bid to host the contest in a city in the Valencian Community; since 2022, the autonomous community has hosted Benidorm Fest, the Spanish national final for the Eurovision Song Contest. The mayor of Barcelona, Jaume Collboni, expressed interest in hosting the event in the city, followed by the mayor of Málaga, Francisco de la Torre. Madrid, Granada and Zaragoza also announced their readiness to host the competition. Ana María Bordas [es], head of the Spanish delegation for the contest, had said that the broadcaster had received several bids upon the host country announcement and that a decision would be taken within the following weeks. Valencia, Barcelona, Málaga, Granada and Zaragoza were reported to have submitted an official bid by mid-March 2024. Shortly after, however, Zaragoza announced its withdrawal due to the unavailability of the intended venue for an assessment visit. In mid-April, Barcelona was unofficially reported to be in the forefront of the selection process, with Palau Sant Jordi considered as the potential venue, but by the end of the month the city dropped out of the running due to the lack of an adequate venue available for late 2024.

RTVE and the EBU scheduled a press conference at Malmömässan in Malmö on 10 May 2024, during the adult contest, where the selected host city was revealed to be Madrid, with Caja Mágica as the selected venue.

On 3 September 2024, the EBU announced that 17 countries would participate in the 2024 contest. Cyprus returned to the contest after a six-year absence, while San Marino did so after an eight-year absence, despite originally confirming non-participation. Meanwhile, the United Kingdom opted not to participate after doing so the previous two years.