William Eugene Bufalino (/ˌbʌfəˈliːnoʊ/; April 13, 1918 – May 12, 1990) was an American attorney who represented the International Brotherhood of Teamsters (IBT) from 1947 until 1971. He retired in 1982. Bufalino worked closely with Jimmy Hoffa until 1971. Bufalino died on May 12, 1990.