Ruy Ohtake (27 January 1938 — 27 November 2021) was a Brazilian architect.

Examples of his projects are the half-moon-shaped Hotel Unique,[1] the Hotel Renaissance building, and commercial building Edifício Santa Catarina at Avenida Paulista - all three located in the city of São Paulo.

He majored in Architecture in 1960 at the University of São Paulo.

Ohtake was married twice: first to Brazilian actress Célia Helena, who died in 1997, and later to architect Silvia Vaz.

[3] Ohtake died on 27 November 2021, in São Paulo at the age of 83.