Arístides Royo Sánchez (born August 14, 1940) is a Panamanian politician who was 23rd President of Panama from October 11, 1978[1] to July 31, 1982, when he was pressured to resign by the military.

In 1960, Royo met his future wife, a Spanish citizen named Adela María Ruiz González, while both were students in Salamanca.

President Jimmy Carter negotiated the Panama Canal treaties with General Torrijos in 1978, which were opposed by the then-presidential candidate Ronald Reagan.

Eleven years later, President George H. W. Bush launched the Invasion of Panama to remove General Manuel Noriega from power.

[3] However, Royo did get some political power in the timeframe between Torrijos's death in July 1981 and the military takeover by Paredes in March 1982.