For the Victorian Age, we are focusing on British novels. This is because the Victorian Age marked the rise of the novel as the most important literary form, surpassing poetry and theatre.
Poetry was written and still popular in the Victorian Age. Famous poets are Robert Browning, Alfred Lord Tennyson and female poets such as Elizabeth Barrett Browning or Emily Dickinson. The Romantic Movement and Victorian Age are not strictly separated, which means that some of the characteristics of Romantic Poetry still apply to Victorian works.
Theatre became more popular towards the end of the Victorian Age. A very successful playwright was Oscar Wilde, who wrote splendid light-hearted comedies such as The Importance of Being Earnest.
It is worth mentioning that English literature at this period in time was not only produced in England anymore. Some notable American 19th century writers are Edgar Allan Poe (inventor of the horror genre), Herman Melville (Moby Dick) and Walt Whitman. And let's not forget Harriet Beecher Stowe, whose Uncle Tom's Cabin sparked the Civil War which led to the abolition of slavery.