The following is a list of the lieutenant governors of New Brunswick. Though the present day office of the lieutenant governor in New Brunswick came into being only upon the province's entry into Canadian Confederation in 1867, the post is a continuation from the first governorship of New Brunswick in 1786. This list also includes a number of the individuals, primarily Chief Justices, who acted briefly as de facto interim lieutenant governors for short periods of time. For instance, when lieutenant governors died in office. These individuals were generally not sworn in as actual lieutenant governors, they merely temporarily assumed the responsibilities of the Lieutenant Governor until a new person was appointed to the position. These "interim" lieutenant governors are identified in the list below as "admin".

No.	Portrait	Name (Birth–Death)	Term of office		Monarch Reign	Premier Term of office
			Took office	Left office
1		Thomas Carleton (1735–1817)	20 May 1786	2 February 1817[Note 1]	George III (1760–1820)	None
–		Gabriel George Ludlow (1736–1808) Acting	5 October 1805	12 February 1808
–		Edward Winslow (1746/1747–1815) Acting	20 February 1808	24 May 1808
–		Sir Martin Hunter GCH (1757–1846) Acting	24 May 1808	17 December 1808
–		George Johnstone (died 1825) Acting	17 December 1808	28 April 1809
–		Sir Martin Hunter GCH (1757–1846) Acting	28 April 1809	10 September 1811
–		William Balfour (1758–1811) Acting	10 September 1811	14 November 1811
–		Sir Martin Hunter GCH (1757–1846) Acting	14 November 1811	15 June 1812
–		George Stracey Smyth (1814–1892)	15 June 1812	17 August 1813
–		Sir Thomas Saumarez (1760–1845) Acting	17 August 1813	14 August 1814
–		George Stracey Smyth (1767–1823) Acting	14 August 1814	25 June 1816
–		Harris W. Hailes (1752–1819) Acting	25 June 1816	30 June 1817
2		George Stracey Smyth (1767–1823)	1 July 1817	27 March 1823
					George IV (1820–1830)
3		Sir Howard Douglas 3rd Baronet FRS (1776–1861)	28 August 1824	8 September 1831
					William IV (1830–1837)
4		Sir Archibald Campbell 1st Baronet GCB (1769–1843)	9 September 1831	1 May 1837
5		Sir John Harvey KCH (1778–1852)	1 May 1837	26 April 1841
					Victoria (1837–1901)
6		Sir William Colebrooke (1787–1870)	27 April 1841	11 April 1848
7		Sir Edmund Walker Head 8th Baronet KCB (1805–1868)	11 April 1848	28 September 1854
8		John Manners-Sutton (1814–1877)	7 October 1854	26 October 1861
						Charles Fisher (1854–1856)
						John Hamilton Gray (1856–1857)
						Charles Fisher (1857–1861)
						Samuel Leonard Tilley (1861–1865)
9		Arthur Hamilton-Gordon (1829–1912)	26 October 1861	30 September 1866
						Albert James Smith (1865–1866)
						Peter Mitchell (1866–1867)

No.	Portrait	Name (Birth–Death)	Term of office		Monarch Reign	Premier Term of office
			Took office	Left office
1		Charles Hastings Doyle (1803–1883)	1 July 1867	18 October 1867	Victoria (1837–1901)	Andrew Rainsford Wetmore (1867–1870)
2		Francis Pym Harding CB (1821–1875)	18 October 1867	23 July 1868
3		Lemuel Allan Wilmot (1809–1878)	23 July 1868	15 November 1873
						George Edwin King (1870–1871)
						George Luther Hathaway (1871–1872)
						George Edwin King (1872–1878)
4		Sir Samuel Leonard Tilley KCMG, PC (1821–1875)	15 November 1873	16 July 1878
						John James Fraser (1878–1882)
5		Edward Barron Chandler (1800–1880)	16 July 1878	6 February 1880
–		Sir John Campbell Allen (1817–1898) Administrator of the Government	6 February 1880	11 February 1880
6		Robert Duncan Wilmot PC (1817–1898)	11 February 1880	11 November 1885
						Daniel Lionel Hanington (1882–1883)
						Andrew George Blair (1883–1896)
(4)		Sir Samuel Leonard Tilley KCMG, PC (1821–1875)	11 November 1885	21 September 1893
7		John Boyd (1826–1893)	21 September 1893	4 December 1893
–		Sir John Campbell Allen (1817–1898) Administrator of the Government	4 December 1893	20 December 1893
8		John James Fraser (1829–1896)	20 December 1893	24 November 1896
						James Mitchell (1896–1897)
–		William Henry Tuck (1831–1913) Administrator of the Government	24 November 1896	9 December 1896
9		Abner Reid McClelan (1831–1917)	9 December 1896	28 January 1902
						Henry Emmerson (1897–1900)
						Lemuel John Tweedie (1900–1907)
					Edward VII (1901–1910)
10		Jabez Bunting Snowball (1837–1907)	28 January 1902	24 February 1907
–		William Henry Tuck (1831–1913) Administrator of the Government	24 February 1907	5 March 1907
						William Pugsley (1907)
11		Lemuel John Tweedie (1849–1917)	5 March 1907	6 March 1912
						Clifford William Robinson (1907–1908)
						John Douglas Hazen (1908–1911)
					George V (1910–1936)
						James Kidd Flemming (1911–1914)
12		Josiah Wood (1843–1927)	6 March 1912	29 June 1917
						George Johnson Clarke (1914–1917)
						James Alexander Murray (1917)
						Walter Edward Foster (1917–1923)
13		Gilbert Ganong (1851–1917)	29 March 1917	31 October 1917
–		John Douglas Hazen (1860–1937) Administrator of the Government	31 October 1917	6 November 1917
14		William Pugsley PC, KC (1850–1925)	6 November 1917	28 February 1923
15		William Frederick Todd (1854–1935)	28 February 1923	28 December 1928		Peter Veniot (1923–1925)
						John Babington Macaulay Baxter (1925–1931)
16		Hugh Havelock McLean (1854–1938)	28 December 1928	8 February 1935
						Charles Dow Richards (1931–1933)
						Leonard Percy de Wolfe Tilley (1933–1935)
17		Murray MacLaren (1861–1942)	8 February 1935	5 March 1940
						Allison Dysart (1935–1940)
					Edward VIII (1936)
					George VI (1936–1952)
18		William George Clark (1865–1948)	5 March 1940	1 November 1945
						John B. McNair (1940–1952)
19		David Laurence MacLaren (1893–1960)	1 November 1945	5 June 1958
					Elizabeth II (1952–2022)
						Hugh John Flemming (1952–1960)
20		Joseph Leonard O'Brien (1895–1973)	5 June 1958	9 June 1965
						Louis Robichaud (1960–1970)
21		John B. McNair CC (1889–1968)	9 June 1965	1 February 1968
22		Wallace Samuel Bird (1917–1971)	1 February 1968	2 October 1971
						Richard Hatfield (1970–1987)
–		George F. G. Bridges[1] [Note 2] Administrator of the Government	2 October 1971	8 October 1971
23		Hédard Robichaud OC, PC (1911–1999)	8 October 1971	12 November 1981
–		Charles J. A. Hughes[1] [Note 3] Administrator of the Government	12 November 1981	23 December 1981
24		George Stanley OC (1907–2002)	23 December 1981	20 August 1987
25		Gilbert Finn OC (1920–2015)	20 August 1987	21 June 1994
						Frank McKenna (1987–1997)
26		Margaret McCain (born 1934)	21 June 1994	18 April 1997
27		Marilyn Trenholme Counsell (born 1933)	18 April 1997	26 August 2003
						Ray Frenette (1997–1998)
						Camille Thériault (1998–1999)
						Bernard Lord (1999–2006)
28		Herménégilde Chiasson ONB (born 1946)	26 August 2003	30 September 2009
						Shawn Graham (2006–2010)
29		Graydon Nicholas ONB (born 1946)	30 September 2009	23 October 2014
						David Alward (2010–2014)
						Brian Gallant (2014–2018)
30		Jocelyne Roy-Vienneau ONB (1956–2019)	23 October 2014	2 August 2019
						Blaine Higgs (2018–2024)
–		J.C. Marc Richard[1] [Note 4] Administrator of the Government	2 August 2019	8 September 2019
31		Brenda Murphy ONB (born 1958/1959)	8 September 2019	Incumbent
					Charles III (since 2022)
						Susan Holt (since 2024)

• Office-holders of Canada
• Canadian incumbents by year

Wikimedia Commons has media related to Lieutenant Governors of New Brunswick.

• Office of the Lieutenant Governor of New Brunswick. "History > Lieutenant Governors of New Brunswick". Queen's Printer for New Brunswick. Archived from the original on April 13, 2012. Retrieved December 7, 2005.