The name Luther is a masculine name of German origin meaning army. It was once exclusive^{[citation needed]} to Evangelical Protestants honoring the ecclesiastical reformer and theologian Martin Luther, founder of the Protestant Church.

Notable people with the given name Luther include:

First name

• Luther von Braunschweig (1275–1335), 14th century Grand Master of the Teutonic Order
• Luther Allison (1939–1997), American blues guitarist
• Luther Badger (1785–1868), American congressman from New York
• Luther Loren Baxter (1832-1915), American politician and judge
• Luther Burbank (1849–1926), American botanist
• Luther Hare (1851–1929), American military officer
• Luther Halsey Gulick (1892–1993), American political scientist
• Luther Kombong [id] (1950–2017), former Indonesian politician from Gerindra Party
• Luther Campbell (born 1960), American rapper and record executive
• Luther Dickinson (born 1973), American musician
• Luther Goldman (1909–2005), American naturalist and wildlife photographer
• Luther Grosvenor (born 1946), English musician
• Luther Head (born 1982), American basketball player
• Luther Ingram (1937–2007), American singer-songwriter
• Luther M. Jarrett (1804–1854), American politician
• Luther P. Jefferson (died 1941), American politician
• Luther Lassiter (1918–1988), American pool player
• Luther Magby (1896–1966), American gospel singer
• Luther Martin (1748–1826), American lawyer and political leader
• Luther Perkins (1928-1968) American guitarist
• Luther Robinson (born 1991), American football player
• Luther B. Scherer (1879-1957), American businessman
• Luther Strange (born 1953), American politician
• Luther Blissett (born 1958), English footballer
• Luther Vandross (1951–2005), American singer-songwriter
• Luther Wright (born 1971), American basketball player
• Luther Singh (born 1997), South African footballer

Middle name

• Colin Luther Powell (1937–2021), American politician and diplomat
• John Luther Adams (born 1953), American composer
• Martin Luther King Jr. (1929–1968), American Baptist minister and human rights activist
• Martin Luther King Sr. (1899–1984), American Baptist pastor and human rights activist
• Martin Luther King III (born 1957), American human rights activist and son of Martin Luther King Jr.
• William Luther Pierce (1933–2002), American neo-nazi political activist

Nickname

• Luther Blissett (pseudonym), nom de plume for several artists and writers
• Dr. Luther (born Len Olson, 1968), Canadian professional wrestler
• Luther Reigns (born Matthew Weise, 1971), American retired professional wrestler

Fiction

• Luther, character in Key & Peele
• Luther McDonald, character in It's Always Sunny in Philadelphia
• Luther Hargreeves, character in The Umbrella Academy (TV series)
• Luther Stickell, character in the Mission: Impossible film series
• Luther Strode, character of the comic book The Strange Talent of Luther Strode
• Luther West, character in Resident Evil (film series)
• Luther Whitney, character of the 1997 movie Absolute Power