Monywa (Burmese: မုံရွာမြို့; MLCTS: muṃ rwa mrui.; pronounced: [mòʊɴjwà mjo̰]) is a city in Sagaing Region, Myanmar, located 136 km northwest of Mandalay on the eastern bank of the River Chindwin.

It is served by the Mandalay-Budalin branch railway line, but is best reached by bus as the road from Mandalay is in reasonably good shape. Monywa is now linked by road to Budalin, Dabayin, Ye-U and Kin-U, and by rail to Sagaing and the Mandalay - Myitkyina line. River transport on the Chindwin has always been important as it is navigable for 640 km (400 mi) up to Hkamti during the monsoon season, and most of the year to Homalin.

It got 5.47 inches (139 mm) of rainfall in 19 Oct 2011. It was the new record of rainfall within 24 hours of October in Monywa for last 47 years. The previous record was 5.31 inches (135 mm) of 24 Oct 1967.

Monywa is a major centre for trade and commerce and for agricultural produce from the surrounding Chindwin valley, especially beans, orange, pulses and jaggery (palm sugar). In addition, the local industry includes mills for the production of cotton, flour, noodles, and edible oils. Sausages from Alon called wet udaunk are quite popular, and Budalin longyi (sarong) is known for the strength of the fabric and its checked patterns. Monywa's rough cotton blankets are famous throughout Myanmar (with Monywa providing 80% of the country's blanket for a century), and some can even be found sewn up into knapsacks sold to unsuspecting tourists in Bangkok. Other regional crafts include bamboo and reed products, bullock carts and agricultural implements. The village of Kyaukka is well known for its lacquerware utensils for everyday use.