Iain Stewart

Iain Stewart may refer to:

Iain Stewart, drummer and member of Scottish indie rock band The Phantom Band
Iain Stewart (Canadian official), former president of the Public Health Agency of Canada from 2020 to 2021
Iain Stewart (footballer), Scottish football player and manager
Iain Stewart (geologist), Scottish geologist
Iain Stewart (physicist), Canadian-American theoretical nuclear and particle physicist
Iain Stewart (politician), British Conservative Member of Parliament for Milton Keynes South
Iain Maxwell Stewart, Scottish industrialist