Kazuyo Sejima (born 1956) is a Japanese architect. She is known for designs with clean modernist elements. They usually include slick, clean, and shiny surfaces made of glass, marble, and metals. She also likes to use squares and cubes, which can be found in her designs in various usages. Large windows allow natural light to enter a space, and make her space be involved with the world which is on the other side of the glass.

 It is this connection of two spaces from which she draws her inspirations.Kazuyo Sejima, along with and Ryue Nishizawa, has worked on several projects in Germany, France, England, the Netherlands, United States, and Spain. Many of their designs like the New Museum in the Bowery District in New York City as well as their Glass Pavilion for the Toledo Museum of Art involve glass and a space open to the world around it. Such design elements can be found abundantly in their designs.In 2010, Sejima received the prestigious Pritzker Prize with Ryue Nishizawa.