Enjolras (French pronunciation: [ɑ̃ʒolʁa(s)]) is a fictional character who acts as the charismatic leader of the Friends of the ABC in the 1862 novel Les Misérables by Victor Hugo. In both the novel and the musical that it inspired, Enjolras is a revolutionary who fights for a France with more free and equal rights for the poor, weak, sick, needy, disposed, disabled, and oppressed masses, ultimately dying for his beliefs in the June 1832 rebellion.

Enjolras is described as "a charming young man who was capable of being fearsome" and as "Antinous wild." He is said to have the appearance of "long fair lashes, blue eyes, hair flying in the wind, rosy cheeks, pure lips, and exquisite teeth."

Enjolras is a republican, whose views are significantly shaped by the Montagnards of the French Revolution. The "divine right" of revolution that he expresses is said to go "as far as Robespierre," and Hugo declares that "in the Convention, he would have been Saint Just." His social philosophy is influenced by that of Voltaire and Jean-Jacques Rousseau; whom he declares himself to "admire," in particular Rousseau's theory on the social contract.

Late in the novel, Enjolras "come[s] to accept... the transformation of the great French Republic into the immense human republic," and speaks of a "revolution of the True" that will "light up the whole human race." In the same speech, he seems to draw a religious parallel, declaring the barricades of the failed 1832 uprising to be a place where "day embraces night, and says: I will die with thee and thou shalt be born again with me."

Though he embraces violence as a necessary means of revolution, Enjolras also abhors it: upon executing a member of the insurrectionary mob (Le Cabuc) who has murdered a householder, he declares that while "what [Le Cabuc] did is horrible... what [he, Enjolras] has done is terrible... I have judged myself also, and you shall soon see to what I have sentenced myself." "Death," he says, "I use thee, but I hate thee."

Enjolras is the leader of Les Amis de l'ABC (the Friends of the ABC), a group of radical French republican students. In the original French, the name of the group is a pun: "ABC" is homophonous with "abaissé," the "abased people." Thus Hugo writes that the society had "as its aim, in appearance the education of children; in reality, the elevation of men."

On 5 June 1832, the Friends of the ABC become involved in the June Rebellion that arises during the funeral of Jean Maximilien Lamarque, a popular critic of the monarchy. Enjolras takes command of a barricade they construct in the Rue de la Chanvrerie, overseeing its fortification and defense. Shortly following this, a test of leadership arises: the murder of a local householder by Le Cabuc, an insurrectionary at the barricade, leads Enjolras to execute Le Cabuc, though he deplores the act and declares that "[i]n the future no man shall slay his fellow."

The first assault on the barricade by the National Guard fells the red flag that signifies revolution; when Enjolras calls for volunteers to raise the flag, an elderly bibliophile called Mabeuf undertakes the task and is killed in the process. Enjolras, moved by his courage, takes the bullet-torn coat from his body and raises it as the barricade's new flag.