North Ludlow Beamish (31 December 1797 – 27 April 1872), was an Irish military writer and antiquary.
He was the son of merchant and landowner William Beamish, Esq., of Beaumont House, County Cork. William Beamish was an owner of Beamish and Crawford, one of the largest Irish breweries.
In November 1816, he obtained a commission in the 4th Royal Irish Dragoon Guards, in which corps he purchased a troop in 1823. In 1825 he published an English translation of a small cavalry manual written by Count Friedrich Wilhelm von Bismarck, a distinguished officer then engaged in the reorganisation of the Württemberg cavalry. Beamish's professional abilities brought him to notice, and he received a half-pay majority in the following year. Whilst attached to the vice-regal suite in Hanover he subsequently published a translation of Count von Bismarck's Lectures on Cavalry, with original notes, in which he suggested various changes soon after adopted in the British cavalry. He also completed and edited a history of the King's German Legion from its formation in the British service in 1803 to its disbandment in 1816, which was published in England in 1834–7.
After quitting Hanover, Beamish devoted much attention to Norse antiquities, and in 1841 published a summary of the researches of Professor Carl Christian Rafn, relative to the discovery of America by the Northmen in the tenth century. Beamish, like his younger brother, Richard, who was at one time in the Grenadier guards, was a Fellow of the Royal Society and an associate of several other bodies.
He died at Annmount, County Cork, on 27 April 1872.
The following references are cited in the DNB but have not been independently verified