伊默里纳王国（Merina Kingdom）又称莫里纳王国、梅里纳王国、马达加斯加王国（于19世纪初统一马达加斯加岛后成立），是马达加斯加岛上的一个古国由居住在岛中部伊默里纳高原的梅里纳人创建。14世纪初形成。16世纪统治着岛中部的广大地区。建都城于塔那那利佛。安德里亚南普伊奈梅里纳（Andrianampoinimerina，1787–1810年在位）及其子拉达马一世（Radama I，1810-1828年在位）时，进行了一系列政治及军事改革，基本统一了马达加斯加岛。19世纪遭到英、法的入侵，最终被法国所灭。

The Merina Kingdom (c.1540–1897) was a pre-colonial state off the coast of Southeast Africa that, by the 19th century, dominated most of what is now Madagascar. It spread outward from Imerina, the central highlands region primarily inhabited by the Merina ethnic group with a spiritual capital at Ambohimanga and a political capital 24 kilometres (15 mi) west at Antananarivo, currently the seat of government for the modern democratic state of Madagascar. The Merina kings and queens who ruled over greater Madagascar in the 19th century were the descendants of a long line of hereditary Merina royalty originating with Andriamanelo, who is traditionally credited with founding Imerina in 1540.