Wihan Daeng (Thai: วิหารแดง, pronounced [wí.hǎːn dɛ̄ːŋ]) is a district (amphoe) in southern part of Saraburi province, central Thailand.

The district office was moved to Ban Lam in 1957.

[1] The word Wihan Daeng comes from the Buddhist Red Wihara of Lawa people in Ban Lam area, which was built by red bricks.

Neighboring districts are (from the west clockwise) Nong Khae, Mueang Saraburi, Kaeng Khoi of Saraburi Province, Ban Na of Nakhon Nayok province, and Nong Suea of Pathum Thani province.

This Saraburi Province location article is a stub.