<p>In an elevator door apparatus, an engaging apparatus that engages with a first landing door is disposed on a first car door. The engaging apparatus completes engagement with the first landing door and starts a door opening action of the first car door and the first landing door when a power transmitting body moves by a predetermined amount during door opening commencement. A car door coupling mechanism that is connected to the power transmitting body is disposed on a second car door. The car door coupling mechanism transmits movement of the power transmitting body to the second car door and starts a door opening action of the second car door when the power transmitting body moves by the predetermined amount during door opening commencement.</p>
