James John Miles (born 1959) is a retired Professor of Computer Engineering in the School of Computer Science at the University of Manchester where he previously was head of the school and a member of the Nano Engineering & Storage Technology Research Group (NEST).

[5] Miles has worked at the Meteorological Office modelling the formation of storm clouds and completed research in novel anaesthetic delivery systems for BOC Medishield, now Datex Ohmeda.

[10] He is involved in the Information Storage Industry Consortium (INSIC) Extremely High Density Recording (EHDR) programme,[11] determining the architecture and design of future 1 Terabit per square inch hard disk products and beyond.

[17] Miles is also a member of one of the groups that secured Science Research Investment Fund (SRIF)[18] for the £1.8M Manchester Centre for Mesoscience and Nanotechnology.

In August 2017, he was responsible for the discovery of a previously-unknown collection of Alan Turing letters in an old filing cabinet at the University of Manchester.