Yothaka (Thai: โยธะกา) is a tambon (subdistrict) of Bang Nam Priao district, Chachoengsao province, eastern Thailand.

Yothaka separated from Don Ko Ka and Mon Thong Subdistricts in 1937.

Yothaka means 'orchid tree' (Bauhinia monandra) as, in the past, along the Nakhon Nayok River, this species was abundant.

The eastern line railway station, Yothaka, is in Bang Toei Subdistrict, Ban Sang district.

Pak Nam Yothaka, the confluence of the Prachinburi and Nakhon Nayok Rivers, is in Bang Taen subdistrict, Ban Sang district.