Events during the year 1929 in Italy.

• Monarch: Victor Emmanuel III
• Prime Minister: Benito Mussolini

• 11 February – The Lateran Treaty, an agreement between the Kingdom of Italy and the Holy See, is signed in Rome.^[1] Due to The Concordat of 1929, It made Catholicism the Sole religion of Italy this was the case until 1984.^[2][3]
• date unknown – The first of the Saccopastore skulls is discovered.

• 3 January – Sergio Leone, film director (died 1989)
• 11 January – Nicoletta Orsomando, continuity announcer (died 2021)
• 26 February – Paolo Ferrari, actor (died 2018)^[4]
• 15 March – Antonietta Stella, operatic soprano (died 2022)^[5]
• 8 July – Milena Greppi, hurdler
• 23 July – Gaetano Giuliano, politician (died 2023)
• 4 August - Gabriella Tucci, operatic soprano (died 2020)
• 4 November – Riccardo Ehrman, journalist (died 2021)^[6]

• 12 April – Enrico Ferri, Italian criminologist (born 1856)
• 9 November – Guido Keller, aviator and political activist