The Inginimitiya Dam (Sinhalese: ඉඟිණිමිටිය ජලාශය) is an embankment dam built across the Mi Oya, at Inginimitiya, Sri Lanka.

Measuring 4,880 m (16,010 ft) wide and 18 m (59 ft) tall, the dam creates the popular Inginimitiya Reservoir, which is primarily used for irrigation purposes.

[1][2] The idea for making reservoir in Inginimitiya has been proposed for the first time in Rajya manthrana sabha before 75 years ago in 1930s.

Overall project scheme was funded as loan aids by Japan and it is Yen 1800 Millions.

Apart this Sri Lanka government has been received Rupees 89,000,000 as local funds.