| St Illtud artist: Theodore Baily 1922 Priory Church of St Mary and St Illtyd, Caldey Island south wall of the nave
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| St David, St Illtud and the Four Evangelists 1958 Church of St David, Neath, Neath Port Talbot south transept
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| St Illtud and St David firm/studio: Celtic Studios 1960 Church of St Margaret, Mountain Ash, Rhondda Cynon Taff north aisle
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| St David with St Martin and St Illtud designer: William Pearce firm/studio: G. A. Rowson 1919 Church of St Illtyd, Llantwit Fardre, Rhondda Cynon Taff south wall of the nave
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| St Illtud, St Dyfrig and St Cadog designer: Roy Walter Coomber firm/studio: Solaglas Ltd 1989 Church of St Illtyd, Llantwit Fardre, Rhondda Cynon Taff south wall of the south chapel
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| St Samson and St Illtud artist: Theodore Baily about 1920-1928 Caldey Abbey, Caldey Island cloister
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| St Illtud and St David firm/studio: G. Maile & Son designer: Arthur Walker 1956 Church of St Illtud, Mamhilad, Monmouthshire north wall of the nave
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| St Keyne with St Illtud and St Cadog artist: Horace Wilkinson 1922 Cathedral Church of St John Evangelist, Brecon, Powys north wall of the north aisle (St Keyne's Chapel)
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| St David and St Illtud 2010 Church of St Illtyd, Pembrey, Carmarthenshire vestry screen (north aisle)
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| St Illtud firm/studio: J. Wippell & Co. Ltd 1967 Christ Church, Aberbeeg, Caerphilly west wall of the north aisle
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