Arthur Henry Hallam was an English poet, best known as the subject of a major work, In Memoriam, by his close friend and fellow poet Alfred Tennyson. Hallam has been described as the jeune homme fatal of his generation.

The poem In Memoriam A.H.H. (1850) by Alfred, Lord Tennyson, is an elegy for his Cambridge friend Arthur Henry Hallam, who died of cerebral haemorrhage at the age of twenty-two years, in Vienna in 1833. As a sustained exercise in tetrametric lyrical verse, Tennyson's poetical reflections extend beyond the meaning of the death of Hallam, thus, In Memoriam also explores the random cruelty of Nature seen from the conflicting perspectives of materialist science and declining Christian faith in the Victorian era (1837–1901), the poem thus is an elegy, a requiem, and a dirge for a friend, a time, and a place.