L'Histoire de Tom Jones, enfant trouvé, (The History of Tom Jones, a Foundling en anglais), abrégé en Tom Jones, est un roman de Henry Fielding, publié par l'éditeur londonien Andrew Millar en 1749. Commencé en 1746 et terminé en 1748, c'est un livre ambitieux qui doit beaucoup à la vie personnelle de son auteur, en particulier la mort en 1744 de son épouse Charlotte Craddock, et son remariage cinq ans plus tard avec Mary Daniel, la femme de chambre de la défunte. Très critiqué à sa parution, Tom Jones devient vite un immense succès populaire qui ne s'est jamais démenti.
Fielding's comic masterpiece of 1749 was immediately attacked as `A motley history of bastardism, fornication, and adultery'. Indeed, his populous novel overflows with a marvellous assortment of prudes, whores, libertines, bumpkins, misanthropes, hypocrites, scoundrels, virgins, and all too fallible humanitarians. At the centre of one of the most ingenious plots in English fiction stands a hero whose actions were, in 1749, as shocking as they are funny today. Expelled from Mr Allworthy's country estate for his wild temper and sexual conquests, the good-hearted foundling Tom Jones loses his money, joins the army, and pursues his beloved across Britain to London, where he becomes a kept lover and confronts the possibility of incest. Tom Jones is rightly regarded as Fielding's greatest work, and one of the first and most influential of English novels.