Arend de Keysere (Arnoldus cesaris, Arnoul de Keysere) ( ?
- Ghent, 1490) was a Flemish masterprinter of incunabula.
De Keysere, who very probably was trained as a printer in France, started printing in Oudenaarde in 1480.
Shortly afterwards, in 1483, he established himself as a printer in Ghent where he stayed until his death in 1490.
De Keyser edited 33 publications : 13 letters of indulgence, 9 theological works and 5 official publications; 23 of them were in Latin, 8 in Dutch and 3 in French.