Marratt & Ellis Opticians was a company established in 1828 in London, England. Initially known as J S Marratt, then Marratt and Short, this optician's was situated at 63 King William Street, the northern end of London Bridge where King William Street meets Gracechurch Street. Marratt and Ellis was at one time a large business engaged in sight testing, dispensing spectacles, making artificial eyes and a supplier of optical and scientific instruments. There are many examples of opera glasses, thermometers, barometers and meteorological instruments etc. which are engraved with the company name.