Zengena Lake (Amharic: ዘንገና ሐይቅ) is a crater lake located at 10°54′50″N 36°58′00″E / 10.91389°N 36.96667°E / 10.91389; 36.96667 in the Awi Zone of the Amhara Region in Ethiopia. It is situated between the towns of Injibara and Kessa, only 200 m from the Addis Ababa-Bahir Dar highway at an elevation of 2500 m. The diameter of the lake is roughly 1 km. With a maximum depth of 166 m, it is the second deepest lake in Ethiopia after Lake Shala. Its rim is made of unconsolidated ash deposits. Zengena Lake is most likely a maar lake formed by volcanic explosion and collapse.

• Tenalem Ayenew (2009). Natural Lakes of Ethiopia. Addis Ababa University Press. Addis Ababa.