Marlborough Street Magistrates Court was a court of law at 19–21 Great Marlborough Street, Soho London, between the late 18th and late 20th centuries. It was designed by the Surveyor to the Metropolitan Police, John Dixon Butler. The court saw many significant trials, including those of Oscar Wilde, Christine Keeler, Keith Richards and John Lennon. The court closed in 1998 and is now The Courthouse Hotel London, a 5-star hotel next to London Palladium Theatre, and opposite Carnaby Street and Liberty London.

Great Marlborough Street is a thoroughfare in Soho, Central London. It runs east of Regent Street past Carnaby Street towards Noel Street.