| Honorific Suffix: | Bt |
| Sir Charles Johnston | |
| Nationality: | English |
| Order: | Lord Mayor of London |
| Term Start: | 1914 |
| Term End: | 1915 |
| Predecessor: | Sir Vansittart Bowater |
| Successor: | Charles Wakefield |
Sir Charles Johnston, 1st Baronet (3 May 1848 – 10 April 1933), was Lord Mayor of London for 1914 –15.[1]
Prior to serving as Lord Mayor he was an Alderman and, in 1910–11, Sheriff of the City of London. He was created a Baronet in January 1916 which became extinct on his death.