Hilary Hurlburt Smart (July 29, 1925 – January 8, 2000) was an American sailor and Olympic champion. He competed at the 1948 Summer Olympics in London, where he received a gold medal in the star class with the boat Hilarius, together with his father, Paul Smart. He often described his Olympic victory by speaking about "the unbelievable feeling of watching the torch come in at the Olympic Stadium. It made me feel proud and responsible to think that my dad and I were the only Americans in our specialty since each country was allowed just a single two-man boat."