Baldwin I (French: Baudouin I, Dutch: Boudewijn I) was King of the Belgians.
He was born on 7 September 1930 in Laeken, Belgium, son of Crown Prince Leopold of Belgium (later King Leopold III of the Belgians) and Countess Astrid Bernadotte af Wisborg. He became King of the Belgians upon the death of his father on 25 September 1983, and reigned for the rest of his life. He died on 31 July 1993 in Motril, Spain.
He married on 15 December 1960 to Doña Fabiola de Mora y Aragon (born 1928), a daughter of Gonzalo de Mora y Fernández, Riera y del Olmo, 4th Marquess of Casa Riera, 2nd Count of Mora (1887-1957) and his wife Blanca de Arágon y Carrillo de Albornoz, Barroeta-Aldamar y Elio (1892-1981). The couple had no children.
He was succeeded as King of the Belgians by his brother Albert II.