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Welsh surnames: Why are there so few Welsh surnames, and what are the most common?

One of the trickiest areas of Welsh family history research is telling the small number of Welsh surnames apart. We look at the history of Welsh surnames, and the most common ones today.

Children from the Welsh mining village of Pantywaun, 1940 Welsh surnames

Why are there so few Welsh surnames?

For family historians with Welsh ancestry, one of the most frustrating brick walls to hit in your research is the fact that the same surnames recur again and again. If you’re trying to trace an ancestor with a typically Welsh surname such as Davies, Jones or Williams, you may well find multiple people of the same name and age in parish or census records – making it hard to tell which one is the right ancestor.

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The reason why there are so few Welsh surnames is that the Welsh people traditionally used patronymic surnames, derived from the father’s name. When a boy was baptised in Wales, his first name would be linked to his father’s first name by the prefix ap or ab, meaning ‘son of’. Girls used the prefix ‘ferch’, meaning daughter of. For example, Evan son of Rhys would be Evan ap Rhys, and his daughter Gwyneth would be Gwyneth ferch Evan. This makes tracing older generations in your Welsh family tree tricky because there is no consistent surname from generation to generation.

Following Henry VIII’s break away from the Catholic Church in 1533, the Welsh legal system and aristocracy became absorbed into the English system. Fixed hereditary surnames slowly became popular among the Welsh gentry, which eventually spread to the rest of the Welsh people, although patronymic surnames were used in some parts of rural Wales until the early 19th century. As a consequence of the patronymic system, many of the most common Welsh surnames today are adopted from male first names – for example, Jones is taken from John and Davies from David. Some Welsh surnames also have traces of patronymic prefaces – for example, Bowen is derived from ‘ab Owen’, and Price comes from ‘ap Rhys’. It is also common to see double-barrelled Welsh surnames from the 19th century onwards, with people combining their family surname and their mother’s maiden name in a bid to distinguish themselves from others.

What are the most common Welsh surnames?

Monty Python's Terry Jones has a common Welsh surname
Monty Python’s Terry Jones has a common Welsh surname
Samir Hussein/Getty Images for BFI

DAVIES

About 25 per cent of the 160,000 Davies who were recorded in the 1891 census were living in Glamorgan.

EDWARDS

This patronymic surname is found across Wales, but is most common in the north.

ELLIS

The 1881 census records a spike in the popularity of the surname Ellis in and around Denbighshire.

EVANS

This surname is most associated with the mountainous North Welsh coastal region of Meirionnydd. John Evans, born in 1770 in Waunfawr near Caernarfon, was an explorer who travelled to America and produced an early map of the Missouri River.

HUGHES

This patronymic is particularly concentrated in Anglesey and Caernarfonshire.

JENKINS

Glamorgan had Wales’s highest population of Jenkins families in 1891.

JONES

This is the most commonly found North Welsh surname. One famous Jones from the area is Monty Python comedian Terry Jones. He was born in Colwyn Bay, Denbighshire in 1942.

LEWIS

According to the Oxford Dictionary of Family Names Lewis derives from the Norman name Lowis/Lodovicus, which has Germanic roots.

LLOYD

You’ll find plenty of Lloyds in North-East and mid-Wales. Famously, the Liberal statesman David Lloyd George is Britain’s only Welsh prime minister to date, leading the country to victory in the First World War.

MORGAN

This surname derives from 
the Old Welsh name Morcan.

PARRY

Most common in Anglesey, this surname derives from shortening ‘ap Harry’ (son of Harry).

ROBERTS

This is one of the four commonest North Welsh surnames.

THOMAS

No fewer than 27,949 Thomases were recorded in Glamorgan in 1881 – as well as 6,052 in Cardiganshire, 10,400 in Carmarthenshire, 1,694 in Brecknockshire and 5,686 in Monmouthshire.

WILLIAMS

This surname is the patronymic form of the name William.

WYNNE

This personal name is often found in parts of north-east Wales.

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Jonathan Scott is the author of A Dictionary of Family History