Richard Palmer Kaleioku Smart (1913–1992) was an American musical theatre actor and singer who became owner of the largest private ranch in Hawaii.

In 1914 the family traveled to Europe, where his mother gave birth to a sister Elizabeth Ella Smart in Paris.

By this time World War I was starting, so they hurriedly traveled back to New York City, where the sister died.

His mother (born Annie Thelma Kahiluonapuaapiilani Parker) died shortly after this in San Francisco on November 14, 1914, from tuberculosis.

A year later, his father Henry Gaillard Smart (son of a Virginia clergyman) died in November 1915, just after contesting the will.

[1] He was raised by his part-Hawaiian maternal grandmother, born Elizabeth Jane Lanakila Dowsett, by then remarried to Frederick Knight in San Francisco, usually called "Aunt Tootsie".

He headlined such clubs as the Coconut Grove in Los Angeles, the Monte Carlo in New York and Le Lido in Paris.

In 1965 he leased land to Laurance Rockefeller for building the Mauna Kea Beach Hotel on Kaunaʻoa Bay of the Kohala Coast.

[10] In 1987, Smart sponsored a production of the Jerry Herman musical revue Showtune (then titled Tune the Grand Up) at the Kahilu Theatre.