|Address||30B Grindlay Street|
|Location||Edinburgh, Scotland, UK|
|Owner||City of Edinburgh Council|
|Designation||Category A Listed building|
|Opened||10 September 1883|
|Architect||C. J. Phipps|
|Royal Lyceum Theatre Company|
The Royal Lyceum Theatre is a 658-seat theatre in the city of Edinburgh, Scotland, named after the Theatre Royal Lyceum and English Opera House, the residence at the time of legendary Shakespearean actor Henry Irving. It was built in 1883 by architect C. J. Phipps at a cost of £17,000 on behalf of James B. Howard and Fred. W. P. Wyndham, two theatrical managers and performers whose partnership became the renowned Howard & Wyndham Ltd created in 1895 by Michael Simons of Glasgow. 
With only four minor refurbishments, in 1929, 1977, 1991, and 1996, the Royal Lyceum remains one of the most original and unaltered of the architect's works.
In 1965, the building was purchased by the Edinburgh Corporation from Meyer Oppenheim to house the newly formed Royal Lyceum Theatre Company, who are now the permanent residents, leasing it from the City of Edinburgh Council.
The Royal Lyceum has been one of the principal venues for the Edinburgh International Festival since the festival's inception in 1947, its owners renting out the building for three weeks every August for visiting companies, and often for a further week to Fringe companies.
The Royal Lyceum has primarily been known for its provision of drama. It has also presented some significant opera, from the first tours of Carl Rosa in the latter part of the 19th century, through to the early decades of Scottish Opera in the 1960s and 1970s. Some important operas received their first Scottish performance at the Lyceum, including Madam Butterfly, Manon and Die Meistersinger.
The theatre was the first in Britain to be fitted with an iron safety curtain, and the first in Scotland to use electricity for house lighting.
The theatre is believed to be haunted, and there have been sightings of a blue lady who is believed to be Ellen Terry, the actress who performed at the Lyceum's first show. In addition, a shadowy figure has been reportedly seen high above the stage in the lighting rig. Many sightings have been reported to have been accompanied by a ringing noise.
- Hartnoll, Phyllis; Found, Peter (1996), The Concise Oxford Companion to the Theatre, Oxford University Press, ISBN 978-0-19-211576-8
- Campbell, Donald (1983), A brighter sunshine: A hundred years of the Edinburgh Royal Lyceum Theatre, Polygon, ISBN 978-0-904919-70-7
- "The Royal Lyceum Theatre, Grindley Street and Cornwall Street, Edinburgh, Scotland".
- "The Theatre Royal, 282 Hope Street, Cowcaddens, Glasgow".
- The Theatre Royal: Entertaining a Nation by Graeme Smith, published 2008
- "Building history", Royal Lyceum website
- "Opening of the Royal Lyceum Theatre". The Edinburgh Evening News. 11 September 1883 – via britishnewspaperarchive.co.uk.
- "Opening of the Lyceum Theatre". The Scotsman. 11 September 1883 – via britishnewspaperarchive.co.uk.
- "Company history", Royal Lyceum website
- Fraser, Iain and Fraser, Stephen (2013) 'Royal Lyceum Theatre' OperaScotland
- Bruce., Peter (1999). Scotlandʼs splendid theatres : architecture and social history from the Reformation to the present day. Edinburgh: Polygon. pp. 32–33. ISBN 978-0748662616. OCLC 44184624.
- "David Greig named Lyceum Theatre's artistic director". The Scotsman. Edinburgh. 9 September 2015.
- "Why you've more than a ghost of a chance of seeing a spook". The Scotsman. Edinburgh. 8 November 2004.