Tanjung Timur, also known as Tandjong Oost or Groeneveld, was a private domain (particuliere land) located in what is now modern-day Pasar Rebo in East Jakarta, Indonesia.
The estate was situated on the banks of the Ciliwung River. It was one of two primary estates positioned along the waterway, with Tandjong Oost located to the east and its counterpart, Tandjong West, located to the west.