A stacked oven may include a supporter installed between a first oven at a lower portion of the first oven and a second oven above the first oven and fixing the second oven at a position spaced apart upward from the first oven. The supporter may include a first installation member that includes a vertical extending member that contacts a side surface of the first oven, a lateral extending member that extends from an upper portion of the vertical extending member in a direction toward a center of the first oven, and a load support provided between a lower portion of the lateral extending member and the first oven; a second installation member that includes a lower surface support and a side surface support that contact a lower surface and a side surface of the second oven, respectively, and having an angle with respect to each other, and a guide that extends upward and outward from an upper end of the side surface support; and a connection member that vertically connects the lateral extending member and the lower surface support.