AlgaeVision is a database and virtual collection of images of freshwater and terrestrial algae collected in Britain and Ireland.

It also includes species from slightly brackish water and some marine blue-green algae (cyanobacteria), but diatoms are not included. The only colourless forms included are dinoflagellates (Dinophyta).

The database is designed to be used in conjunction with the second edition of The Freshwater Algal Flora of the British Isles, published in 2011. The volume was the outcome of a collaboration between The British Phycological Society and the Natural History Museum.