Tonlé Bassac (Khmer: ទន្លេបាសាក់) is a commune (sangkat) of Chamkar Mon District in Phnom Penh, Cambodia.

Lying beside the Bassac River, the area has become a hub of development projects in the last two years, drawing comparisons with Marina Bay, Singapore.

[1][2] The area extends from the banks of the Bassac River in the east, to National Highway One in the south, across to Monivong Boulevard in the west, and Samdach Preah Sihanouk Boulevard in the north.

The area is home to the Phsar Kapko market and various cultural boutiques and modern restaurants.

[3] iCan British International School is in Tonle Bassac commune.