George Alexandre O'Kelly (12 October 1831 – 2 September 1914) was a Franco-Irish pianist and composer, who spent much of his career in Boulogne-sur-Mer. A member of a family of musicians, he was the only one with several orchestral scores to his credit. Another notable work is an opera on an Irish theme, performed in Boulogne in 1878.
George O'Kelly was born as George Alexandre Kelly in Boulogne-sur-Mer. Unusually, his first name was spelled in the English way (without an 's' at the end). His father was an Irish emigrant, the Dublin-born pianist Joseph Kelly (1804–1856); his brothers included the composer Joseph O'Kelly (1828–1885) and the music publisher Auguste O'Kelly (1829–1900). Around 1835, when he was still very young, the family moved to Paris where he grew up in the Faubourg Poissonnière area of the 9th arrondissement. Nothing is known of his musical education, but it can be presumed that he received early lessons from his father and later some more advanced training from others. His earliest public record is his membership in the 'Association des Artistes Musiciens', where he is listed in the annual membership lists for the years 1848–52. For the last three of these years he was listed as pianist employed at the Théâtre Historique (1850–1) and its successor, the Théâtre Lyrique (1852).
Together with another brother, the business man Charles (Frédéric) O'Kelly (1830–1897), he returned to Boulogne-sur-Mer in 1852 and established himself there as a piano teacher and composer/performer. An 1851 concert review mentioned his impending move to Boulogne: "O'Kelly est une jeune pianiste qui est venu se fixer ici, et qui est arrivée précédé d'une reputation qui la soirée de lundi n'a fait que justifier". Frequently, George was involved in the activities of the local Société Philharmonique. In 1853, he seems to have persuaded the local music shop of B. Filliette to publish his first two piano compositions. Other early scores were an Overture (1853) for orchestra, performed by Société Philharmonique in April 1853, and the opera Une Nuit au bal, performed at the Théâtre Municipal in December 1853.
George married a widow with two sons in January 1856 and had two sons of his own, born in 1858 and 1860. For many years, the family lived in the historic walled town centre of Boulogne, in Rue du Puits d'Amour (1861–mid-1870s) and Rue de la Balance (until c.1881). In 1871, two works for piano and orchestra were performed in Boulogne, but his largest works were two scores, both performed in September 1878 on the occasion of the laying of the foundation stone to the new deep-sea harbour of Boulogne. One was the one-act comic opera Le Lutin de Galway and the other the cantata Le Port en eau profonde for baritone, chorus and orchestra. Although both works were well received by the press they were not taken up again in the following years. Seeking more artistic success may therefore have been one of the reasons why he moved back to Paris around 1881.