Francis Cornwallis (c. 1692–1728) of Abermarlais, was a Welsh Tory politician who sat in the House of Commons from 1722 to 1728. Cornwallis was the only
and his wife Cassandra Cornwallis, daughter of Thomas Cornwallis of Abermarlais, Carmarthenshire. He matriculated at Wadham College, Oxford on 27 September
His second wife was Emma Cornwallis, widow of Thomas Cornwallis of Abermarlais and daughter of Sir Job Charlton, 1st Baronet and his second wife Letitia