Walter Andrew Bell (January 4, 1889 – 1969) was a Canadian geologist. He worked for the Geological Survey of Canada for over 40 years and authored or co-authored 70 publications, mostly concerning Carboniferous stratigraphy, paleobotany and paleontology of Atlantic Canada. He also contributed significantly to central and western Canadian Mesozoic and Cenozoic paleobotany. His work provided support for the theory of continental drift.