Victor Alexandre Puiseux (1820–1883) was a French mathematician and astronomer. Puiseux series are named after him, as is in part the Bertrand–Diquet–Puiseux theorem.
He was born in 1820 in Argenteuil, France. He occupied the chair of celestial mechanics at the Sorbonne. Excelling in mathematical analysis, he introduced new methods in his account of algebraic functions, and by his contributions to celestial mechanics advanced knowledge in that direction. In 1871, he was unanimously elected to the French Academy.
One of his sons, Pierre Henri Puiseux, was a famous astronomer.
He died in 1883 in Frontenay, France.
* O'Connor, John J.; Robertson, Edmund F., "Victor Alexandre Puiseux", MacTutor History of Mathematics archive, University of St Andrews, http://www-history.mcs.st-andrews.ac.uk/Biographies/Puiseux.html .