Alexander or Alex Wilson may refer to:

• Alexander Wilson (English writer) (1893–1963), MI6 officer and writer of a series of spy novels
• L. Alex Wilson (1909–1960), African-American journalist
• Alexander Wilson (Canadian writer) (1953–1993), American-born Canadian writer, landscape designer, and community activist

• Alexander Wilson (Royal Navy officer) (1760–1834), Royal Navy rear-admiral
• Sir Alexander Wilson (British Army officer) (1858–1937), British Army major-general and Lieutenant-Governor of Jersey
• Sir James Wilson (British Army officer) (Alexander James Wilson, 1921–2004), British Army lieutenant-general

• Alexander Wilson (Virginia politician), United States Representative from Virginia, 1803–1809
• Alexander Wilson (Wisconsin politician) (1833–1888), attorney general of Wisconsin, 1878–1882
• Alexander Wilson (New South Wales politician) (1849–1927), member of the New South Wales Legislative Assembly
• Alexander Wilson (Australian politician) (1889–1954), Member of the Australian House of Representatives
• Alexander Wilson (Scottish politician) (1917–1978), Labour Member of Parliament for Hamilton
• Alex Wilson (Australian politician) (1920–2004), member of the Queensland Legislative Assembly
• Alex Wilson (British politician), member of the London Assembly

• Alexander Wilson (cricketer) (1840–1911), New Zealand cricketer
• Alex Wilson (rugby union) (1874–1932), New Zealand rugby union player
• Alex Wilson (Canadian sprinter) (1907–1994)
• Alex Wilson (footballer, born 1908) (1908–1971), Scottish football goalkeeper
• Alex Wilson (footballer, born 1933) (1933–2010), Scottish football defender
• Alex Wilson (skier) (born 1974), American skier
• Alex Wilson (baseball) (born 1986), baseball pitcher
• Alex Wilson (Swiss sprinter) (born 1990)
• Alex Wilson (basketball) (born 1994), Australian basketball player

• Alexander Wilson (astronomer) (1714–1786), Scottish type-maker, meteorologist and astronomer
• Alexander Wilson (ornithologist) (1766–1813), Scottish-American poet and ornithologist
• Alexander Stoddart Wilson (1854–1909), Scottish minister and botanist
• Alexander Wilson (photographer) (died 1922), Scottish amateur photographer of Dundee
• Alexander Brown Wilson (1857–1938), Australian architect based in Queensland
• Alexander Wilson (British architect) (1888–1969), English architect based in Nottingham
• Alex Wilson (musician) (born 1971), English salsa and Latin jazz pianist

• Alexandra Wilson (born 1968), American actress
• Alexandra Wilkis Wilson, American entrepreneur
• Al Wilson (disambiguation)
• Sandy Wilson (disambiguation)