Alexander James Bird (born 1964) is a British philosopher and Bertrand Russell Professor of Philosophy at the University of Cambridge.

In 2020, Bird was elected to the Bertrand Russell Professorship of Philosophy, succeeding Huw Price.^[1] Previously he was Peter Sowerby Professor of Philosophy and Medicine at King's College London (2018–2020) and the professor of philosophy at the University of Bristol (2003–2017).^[2] Bird was lecturer then reader and head of department at the University of Edinburgh (1993–2003). Bird has also taught at Dartmouth College and at Saint Louis University and was a visiting fellow at All Souls College, Oxford. He was chair of the philosophy sub-panel in Research Excellence Framework 2014.^[3]

Bird represented CULRC in the 1990 Henley Boat Races against OULRC.

• Philosophy of Science, Routledge, 1998
• Thomas Kuhn, Acumen/Princeton University Press, 2000
• Nature’s Metaphysics, Oxford University Press, 2007
• Knowing Science, Oxford University Press, 2022

• Department of Philosophy, King's College London