墨伽拉（希腊语：Μέγαρα）是位于希腊阿提卡的一座古老城市，2001年时的人口为28,195人。墨伽拉位处科林斯地峡北部，萨拉米斯岛的对岸。在萨拉米斯岛仍未被雅典占据的古时，萨拉米斯岛属于墨伽拉的一部分。墨伽拉曾是阿提卡四个地区之一，那四个地区分别由神话里的国王潘狄翁二世（Pandion II）的四个儿子管治，尼索斯（Nisos）就是墨伽拉的统治者。墨伽拉以往是贸易港口，当地人以船只及财富换取邻近城邦军队的保护。墨伽拉共有两个港口：西部柯林斯峡湾上的佩加，及东部爱琴海塞隆尼海湾的尼萨亚。

Megara (/ˈmɛɡərə/; Greek:Μέγαρα, pronounced [ˈmeɣara]) is a historic town and a municipality (pop. 36,924 in 2011) in West Attica, Greece. It lies in the northern section of the Isthmus of Corinth opposite the island of Salamis, which belonged to Megara in archaic times, before being taken by Athens. Megara was one of the four districts of Attica, embodied in the four mythic sons of King Pandion II, of whom Nisos was the ruler of Megara. Megara was also a trade port, its people using their ships and wealth as a way to gain leverage on armies of neighboring poleis. Megara specialized in the exportation of wool and other animal products including livestock such as horses. It possessed two harbors, Pegae, to the west on the Corinthian Gulf and Nisaea, to the east on the Saronic Gulf of the Aegean Sea.