Hartham Common is a park in the county of Hertfordshire in the East of England.
The River Rib enters further east of the main field.
Hartham Common is very sports-orientated, with many different sports being practiced in the area.
A selection includes football, rugby, tennis, fishing, bowls, kayaking and canoeing.
A full gym and swimming pool is located on the edge of the park next to Kallum Weir.