William McArthur
# William McArthur

William McArthur may refer to:

* William Pope McArthur (1814–1850), US naval officer and hydrologist
* William McArthur (Lord Mayor of London) (1809–1887), Irish businessman, MP and Lord Mayor of London
* William Alexander McArthur (1857–1923), British politician
* William S. McArthur (born 1951), US astronaut
* Sir William MacArthur (British Army officer), Director General Army Medical Services
