The placenta is a human organ which provides nutrients to a developing embryo or foetus.

Placenta may also refer to:

• Placentation for further information on placental formation
• Placentalia for further information on equivalent organs in non-human animals

• Placenta (food), an ancient Roman foodstuff after which the organ was named
• Placenta, a 2018/2020 song by Tallah (No One Should Read This/Matriphagy)