As of 2026-10-12, Ilha Solteira Hydroelectric Power Plant tops the list with 21 km3.
- #1 Ilha Solteira Hydroelectric Power Plant — 21 km3
dam and hydroelectric power plant on the Paraná River, between São Paulo and Mato Grosso do Sul, Brazil
The Ilha Solteira Dam is an embankment dam on the Paraná River near Ilha Solteira in São Paulo, Brazil. It was constructed between 1967 and 1973 for hydroelectric power production, flood control and navigation. After launch of last generator in 1978, HPP was the 6th largest in the world. Read more on Wikipedia.
Wikidata - #2 Luiz Gonzaga Dam — 11 km3
dam in Brazil
The Luiz Gonzaga Dam, formerly known as the Itaparica Dam, is a rock-fill embankment dam on the São Francisco River 25 kilometres (16 mi) downstream of Petrolândia in Pernambuco, Brazil. The dam was built for navigation, and hydroelectric power generation as it supports a 1,479 megawatts (1,983,000 hp) power station. It was constructed between 1979 and 1988; the last of its generators was commissioned in 1990. Read more on Wikipedia.
Wikidata - #3 Norak Dam — 11 km3
earth-fill embankment dam on the Vakhsh River in Tajikistan, near Norak
The Nurek Dam is an earth-fill embankment dam on the Vakhsh River in Tajikistan. Its primary purpose is hydroelectric power generation and its power station has an installed capacity of 3,015 MW. Construction of the dam began in 1961 and the power station's first generator was commissioned in 1972. The last generator was commissioned in 1979 and the entire project was completed in 1980 when Tajikistan was still a republic within the Soviet Union, becoming the tallest dam in the world at the... Read more on Wikipedia.
Wikidata - #4 Seimare Dam — 3 km3
dam in Badreh County, Iran
Seimare Dam, also known as Hini Mini or spelled Seymareh, is an arch dam on the Seimare River in Badreh County, Ilam Province, Iran. The primary purpose of the dam is hydroelectric power generation. Studies for the dam were carried out in the mid to late 1970s and construction began on the diversion works in 1997. In 2006, concrete placement began and on 19 May 2011, the dam began to impound the river. The dam's first generator became operational in 2013. The power plant, located downstream,... Read more on Wikipedia.
Wikidata - #5 Sefid-Rud Dam — 2 km3
dam in Rudbar County, Iran
Sefidrud Dam is a buttress dam on the Sefīd-Rūd in the Alborz mountain range, located near Manjil in Gilan Province, northern Iran. Read more on Wikipedia.
Wikidata - #6 Zayanderud Dam — 1 km3
dam in Chadegan County, Iran
Zayanderud Dam, also spelled Zayandeh Rud Dam and formerly known as the Shah Abbas the Great Dam, is an arch dam on the Zayandeh River about 10 km (6.2 mi) east of Chadegan, Iran. The Zayanderud Dam is the main water reservoir with 1450 MCM capacity and has been exploited since 1971. Read more on Wikipedia.
Wikidata - #7 Salman Farsi Dam — 1 km3
dam in Fars, Iran
Salman Farsi Dam Salman Farsi Dam is a concrete dam in the center of Fars province on the Qara Aghaj River. This dam has a capacity of 1400 million cubic meters of water storage and is the largest dam in Fars province. Salman Farsi Dam, as the main source Drinking water operates in the southern cities and villages of Fars province and has played a significant role in supplying water to the region, especially in recent years during drought conditions. The crown of the dam is in the city of Qir... Read more on Wikipedia.
Wikidata - #8 Iran–Turkmenistan Friendship Dam — 1 km3
dam on the Hari River on the border of Iran and Turkmenistan
The Iran–Turkmenistan Friendship Dam, or Doosti Reservoir Dam, is a dam on the Hari river (Hariroud), which forms part of the international boundary between Iran and Turkmenistan. The dam was completed in 2004, and both countries agreed that each would have an equal right to the waters of the river, which amount to 820 million cubic metres. It was officially opened on 12 April 2005. The dam provides drinking water and irrigation for the surrounding areas, along with hydroelectric power. Read more on Wikipedia.
Wikidata - #9 Baixo Sabor Dam — 1 km3 source Wikidata
- #10 Dorudzan Dam — 1 km3
dam in Marvdasht County, Iran
Doroodzan Dam is an earthen dam in Fars province, Iran, about 85 kilometres (53 mi) north of Shiraz. Completed in 1974 and built primarily for irrigation water storage, flood control, and municipal water storage, the facility is also a hydroelectric dam with an installed electricity generating capability of 10 MW. Read more on Wikipedia.
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