Which architect is associated with the organic architecture movement?

Frank Lloyd Wright is a pivotal figure associated with the organic architecture movement, which emphasizes harmony between human habitation and the natural world. This philosophy advocates for designs that are in sync with their surrounding environment, using natural materials and integrating structures with the landscape.

Wright's work, particularly structures like Fallingwater and the Taliesin homes, exemplifies these principles. He believed that architecture should reflect the beauty of nature and create spaces that feel as if they were "formed by nature." This approach seeks to create a sense of unity and balance, which has greatly influenced modern architecture and continues to inspire architects today.

The other architects mentioned are notable for their contributions to architectural styles such as modernism and minimalism, but they do not specifically align with the organic architecture movement's core philosophies as strongly as Wright does.