William Barrett may refer to:
- William Barrett (antiquarian) (1733–1789), English surgeon and antiquary
- William Barrett (consul) (died 1584), English consul at Aleppo
- William Barrett (philosopher) (1913–1992), American philosopher and critic
- William Barrett (priest) (1880–1956), British-Australian Anglican Dean of Brisbane
- William A. Barrett (1896–1976), American politician and a member of the Democratic Party
- William E. Barrett (born 1929), former US Representative from Nebraska
- William Edmund Barrett (1900–1986), writer
- William Emerson Barrett (1858–1906), Representative from Massachusetts
- William Fletcher Barrett (1844–1925), English physicist
- William Hale Barrett (1866–1941), American federal judge
- William N. Barrett (1855–1916), American politician
- William Daniel Barrett (1878–1953), New Zealand tribal leader, land court agent and trust board secretary
Famous quotes containing the words william and/or barrett:
“April, April,
Laugh thy girlish laughter,
But, the moment after,
Weep thy golden tears!”
—Sir William Watson (1858–1935)
“I love thee to the level of everyday’s
Most quiet need, by sun and candle-light.
I love thee freely, as men strive for Right;
I love thee purely, as they turn from Praise.
I love thee with the passion put to use
In my old griefs, and with my childhood’s faith.”
—Elizabeth Barrett Browning (1806–1861)