Eelco Visser (12 October 1966 – 5 April 2022[1]) was an Antoni van Leeuwenhoek Professor of Computer Science at Delft University of Technology.

In 2013 he received the prestigious NWO VICI grant for research into verification of language definitions.

He was member of the steering committees of SPLASH, Onward!, ICMT, and Generative Programming: Concepts & Experience (GPCE), and chaired the latter.

He was founding member of the IFIP Working Groups 2.11 (Program Generation) and 2.16 (Language Design), and he served as chair of the latter.

Eelco Visser had created program-transformation.org web site in 2000 for collecting, organizing and disseminating information about all aspects of Program transformation.