William Lowndes
William Lowndes is the name of:
- William Lowndes ( politician ) ( 1652-1724 ), British politician
- William Lowndes (South Carolina) ( 1782-1822 ), American politician
- William Lowndes Yancey (1814-1863), American politician
- William Selby Lowndes (~ 1767-1840 ), British politician
- William Thomas Lowndes (~ 1798-1843 ), English bibliographer
- Disambiguation