All theatres: S
| Name | Town | Year built |
|---|---|---|
| Sadler's Wells | London | 1683 - 0 |
| Saint Francis' Theatre | Letchworth | 1924 |
| Salomons Centre | Southborough | 1896 |
| Sandonia | Stafford | 1920 |
| Savoy (Kettering) | Kettering | 1903 |
| Savoy (London) | London | 1881 |
| Savoy (Portsmouth) | Portsmouth | 1937 |
| Savoy Theatre | Monmouth | 1832 |
| Scala (Nuneaton) | Nuneaton | 1915 |
| Scala (Torquay) | Torquay | 1909 |
| Scalebor Park Theatre | Burley-in-Wharfdale | 1901 |
| Shaftesbury (London) | London | 1911 |
| Shakespeare (Kendal) | Kendal | 1829 |
| Shakespeare's Globe Theatre | London | 1993 - 1997 |
| Shanklin Theatre | Shanklin | 1878 |
| Shelley | Bournemouth | 1866 |
| Sherman | Cardiff | 1973 |
| Shodfriar's Hall | Boston | 1874 |
| Singing Theatre | Tollard Royal | 1886 |
| Southport Theatre | Southport | 1973 |
| Spa (Bridlington) | Bridlington | 1896 |
| Spa (Scarborough) | Scarborough | 1880 |
| Spa (Whitby) | Whitby | 1879 |
| Spa Pavilion | Felixstowe | 1902 |
| Sparrow Hill Theatre | Loughborough | 1823 |
| St Donats Arts Centre | Llantwit Major | 1300 - 1399 |
| St James Theatre | Long Eaton | 1907 |
| St John's Rooms | Winchester | 1309 |
| St Mary In The Castle | Hastings | 1828 |
| St Mary's Street Theatre | Monmouth | 1700 - 1799 |
| St Monica Home Theatre | Bristol | 1925 |
| St Nicholas Hospital Theatre | Newcastle upon Tyne | 1897 |
| Stamford Arts Centre | Stamford | 1768 |
| Stanford Hall Theatre | Stanford on Soar | 1938 |
| Stanley Royd Hospital Theatre | Wakefield | 1861 |
| Stephen Joseph Theatre | Scarborough | 1936 - 0 |
| Stiwt Theatr | Rhosllanerchrugog | 1927 |
| Summer Theatre (Shanklin) | Shanklin | 1921 |
