The Munros of Obsdale were a Scottish family and a cadet branch of the Clan Munro, a Highland Scottish clan. Their base was at Obsdale House, situated just north of the town of Alness in the Scottish Highlands. Some of the members of the Munro of Obsdale family were amongst the most distinguished Scottish military officers of the 17th century.
George Munro, 1st of Obsdale was the fourth son of Robert Mor Munro, 15th Baron of Foulis, chief of the Clan Munro. However George was the first son born from Robert's second marriage to Kathrine Ross, daughter of the chief of Clan Ross. George received the lands of Obsdale in Alness, as his patrimony. George married a distant relative, Catherine Munro, fifth daughter of Andrew Munro, 5th of Milntown, with issue, among others:
John Munro, 2nd of Obsdale, like his younger and more distinguished brother General Robert Monro, adopted a military profession and served on the Continent under Gustavus Adolphus during the Thirty Years' War. The brothers took ship from Cromarty on the 10th of October 1626 and on arrival were joined by that King's army. John Munro soon attained the rank of Colonel, and in 1628 returned to Scotland to recruit his regiment.
On the 14th of May 1630 John Munro is one of the jury in the general service at Inverness, of John Gordon, 13th Earl of Sutherland, chief of Clan Sutherland, as heir to William, the first Earl. Amongst other members of the Clan Munro present were: Robert Munro of Assynt, John Munro of Lemlair, Hector Munro of Findon, and Andrew Munro of Novar. At the same time and place the same Earl was served heir by the same jury to John de Moravia, 9th Earl of Sutherland.
John Munro returned to Germany in 1630 accompanied by a considerable number of his clansmen. One of the most notable incidents of John Munro, 2nd of Obsdale's career during this war was a severe engagement at the Pass in Oldenburg where he distinguished himself highly and escaped unhurt, while his brother Robert was wounded in the knee. For the next three years he commanded a Scots regiment under Gustavus Adolphus. John Munro, 2nd of Obsdale was killed at Wetteraw on the Rhine, on the 11th of March 1633. Historian Sir Robert Gordon said of him that "he was a man imbued with many good points, and by his industry and venture purchased to himself and to his children good means and possessions under the Earl of Sutherland's wings.