| Birth Date: | 1819 |
| Birth Place: | Diss, Norfolk |
| Death Place: | Diss, Norfolk |
| Occupation: | photographer, surveyor, auctionner, lythographer |
| Known For: | pioneer photography |
Cleer Sewell Alger (1819, Diss, Norfolk – 9 May 1892, Diss) was a Victorian photographic pioneer based in Diss on the Norfolk Suffolk border. Also working as a surveyor and lithographer, he took parts from a theodolite he had used for surveying to enhance his photographic equipment.[1]