Sarah or Sairey Gamp is a nurse in the novel 'Martin Chuzzlewit' by Charles Dickens, first published as a serial in 1843–1844. Mrs. Gamp, as she is usually referred to, is dissolute, sloppy and generally drunk. She became a notorious stereotype of untrained and incompetent nurses of the early Victorian era, before the reforms of campaigners like Florence Nightingale.

The caricature was popular with the British public. A type of umbrella became known as a gamp because Mrs. Gamp always carries one, which she displays with "particular ostentation". The character was based upon a real nurse described to Dickens by his friend, Angela Burdett-Coutts.

Mrs. Gamp appears in 'Dickensian', at first nursing Little Nell at the Old Curiosity Shop and later tending to Silas Wegg (from Our Mutual Friend).

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