The Parang River (Chinese: 帕里河; pinyin: Pà lǐ hé), also called Para River (Chinese: 巴拉河; pinyin: Bā lā hé) and Pare Chu (Chinese: 帕里曲; pinyin: Pà lǐ qū) is an upstream tributary of the Sutlej River, that originates in the Indian state of Himachal Pradesh and ends in Himachal Pradesh again, but flows through Ladakh and Tibet before doing so.

British geographer Alexander Cunningham wries: The Para rises in the Parang Pass, to the [northeast] of the Bara Lacha range,[a] in N. latitude 32° 25', and E. longitude 77° 50', at an elevation of 18,000 feet.

[5]Interestingly, Spiti River flows by the Parang Pass only 10 km to its west.

The Parang River joins it about 80 km downstream at Sumdo, near the Tibet border.

After the union of the two at Sumdo (the old Chang-Razing), the combined river flows south for about 25 miles (40 km), where it joins the Sutlej.