Expo 2023 was a planned specialized exhibition that was scheduled to be held in 2023 in Buenos Aires, Argentina.

[3] The Bureau International des Expositions (BIE) awarded Buenos Aires as the host on November 15, 2017.

[4] In October 2020, Argentina announced that due to the COVID-19 pandemic and the ensuing financial crisis, the expo would not be held as planned in 2023.

[12] There were two other bids to host the specialized exhibition: Łódź submitted a bid with the theme “City Re:Invented” on 15 June 2016; Minneapolis submitted theirs with a theme titled “Healthy People, Healthy Planet: Wellness and Well Being for All”.

[13] The candidature of Rio de Janeiro with the theme “Metropolitan Cities and Sustainability: Cross Border Potentials.” did not take part in the election process.