The 1901 Glamorgan County Council election was the fifth contest for seats on this authority in south Wales. It was preceded by the 1898 election and followed by the 1904 election. Glamorgan was by far the largest county in Wales in terms of population. Glamorgan County Council had been established by the Local Government Act 1888, the first elections being held in early 1889.

As in most parts of Wales, the Liberal Party was once again triumphant and won a majority of the seats. In 1901 the majority of the seats were uncontested, in contrast to the position at previous elections.^[1]

Results are drawn from a number of sources. They include a number of newspapers.

There were no boundary changes at this election.

Eight of the eleven retiring aldermen were Liberals.

In addition to the 66 councillors the council consisted of 22 county aldermen. Aldermen were elected by the council, and served a six-year term. Following the 1901 election, there were eleven Aldermanic vacancies.

The following aldermen were appointed by the newly elected council.^[6] A notable feature was the non-election of Sir John Llewelyn, an alderman since 1889. As a result, there were no Conservative aldermen on Glamorgan County Council, the first time that this had occurred.

elected for six years

• Richard Lewis, Liberal (elected councillor at Llwynypia and Clydach)
• Walter H. Morgan, Liberal, retiring alderman (elected councillor at Pontypridd)
• John Jones Griffiths, Liberal, retiring alderman (elected councillor at Porth)
• William Morgan, Liberal, retiring alderman (elected councillor at Treherbert)
• Thomas Williams
• John Thomas, Liberal-Labour (elected councillor at Garw Valley)
• Morgan Williams, Liberal, Ynyshir
• Edward Edwards, Liberal, Nelson
• Thomas Thomas, Liberal, Merthyr
• Thomas Jones, Liberal, Swansea Valley
• Jenkin Hill, Liberal (elected councillor at Briton Ferry)