William Beardmore and Company was a British engineering and shipbuilding conglomerate based in Glasgow and the surrounding Clydeside area. It was active from 1886 to the mid-1930s and at its peak employed about 40,000 people. It was founded and owned by William Beardmore, later Lord Invernairn, after whom the Beardmore Glacier was named.

William Beardmore, 1st Baron Invernairn, DL, known as Sir William Beardmore, Bt, between 1914 and 1921, was a British industrialist, founding the eponymous William Beardmore and Company.