Keith Alexander may refer to: Keith Alexander (footballer) (1956–2010), former English footballer and football manager Keith B. Alexander (born 1951), General and former head of the US National Security Agency Keith Alexander (Manitoba politician) (1921–1972), Progressive Conservative politician in Manitoba, Canada Keith Alexander (racing driver) (born 1963), American racecar driver Keith Alexander (guitarist) (1963–2005), former guitarist of 1980s thrash band Carnivore Keith Alexander (actor) (fl. 1966), British actor and voice actor Keith Alexander (engineer), New Zealand inventor and professor of mechanical engineering at the University of Canterbury Keith Alexander, a co-host of The Political Cesspool