In sport •
Evan O. Williams (1889–1946), American football and basketball coach •
Evan Williams (footballer) (1943–2025), Scottish football goalkeeper •
Evan Williams (jockey) (1912–2001), horse racing jockey and trainer •
Evan Williams (rugby) (1906–1976), rugby union and rugby league footballer of the 1920s •
Evan Williams (safety) (born 2001), American football player
Other •
Evan James Williams (1903–1945), Welsh physicist •
Evan Williams (actor) (born 1985), Canadian actor and musician •
Evan Williams (diplomat) (born 1950), Australian diplomat and Administrator of the Australian Indian Ocean Territories •
Evan Williams (Internet entrepreneur) (born 1972), businessman, blogger and Twitter co-founder •
Evan Williams (tenor) (1867–1918), American singer •
Sir Evan Williams, 1st Baronet (1871–1959), Welsh industrialist •
Owen Williams (engineer) (Evan Owen Williams, 1890–1969), British engineer and architect ==Other==