1. Pluto - The most famous dwarf planet, it was once considered the ninth planet but was reclassified in 2006.
2. Eris - Larger than Pluto, Eris is located in the Kuiper Belt and has a very eccentric orbit.
3. Makemake - Also found in the Kuiper Belt, Makemake is the third largest dwarf planet.
4. Haumea - A very elongated dwarf planet, Haumea is located in the Kuiper Belt.
5. Ceres - The largest dwarf planet, Ceres is located in the asteroid belt between Mars and Jupiter.
So, technically, there are five dwarf planets, not three.