Sergei Romanovich Bongart (Russian: Сергей Романович Бонгарт; 1918–1985) was an American painter. Bongart is admired for his richly colored and emotionally expressive landscapes, still lifes and portraits. He was best known as a colorist, working in exaggerated color, using dynamic but carefully controlled color relationships and extolling the virtues of approaching painting as "color first, subject last".