Menua (Armenian: Մենուա) was the fifth known king of Urartu from c. 810 BC to approximately 786 BC. The name is sometimes written as Menuas or Minua.
A younger son of the preceding Urartuan King, Ishpuini, Menua was adopted as co-ruler by his father in the last years of his reign. Menua enlarged the kingdom through numerous wars against the neighbouring countries and left a large number of inscriptions across the region. He organized a centralised administrative structure, fortified a number of towns and constructed fortresses. Amongst these was Menuakhinili located on Mount Ararat. Menua developed a canal and irrigation system that stretched across the kingdom. One of those canals was a 50 kilometre canal, which was named the Menua Canal after the king. It flowed at a rate of 1500 to 3000 litres of water per second, depending on the time of the year. Several of these canals are still in use today.