Creuddyn peninsula is the geographical term for a peninsula in the county borough of Conwy

Conwy (county borough)

Conwy County Borough is a unitary authority area in North Wales.-Geography:It contains the major settlements of Llandudno, Llandudno Junction, Llanrwst, Betws-y-Coed, Conwy, Colwyn Bay, Abergele, Penmaenmawr and Llanfairfechan, and has a total population of about 110,000.The River Conwy, after...

 in North Wales

North Wales

North Wales is the northernmost unofficial region of Wales. It is bordered to the south by the counties of Ceredigion and Powys in Mid Wales and to the east by the counties of Shropshire in the West Midlands and Cheshire in North West England...

. It includes the town of Llandudno

Llandudno

Llandudno is a seaside resort and town in Conwy County Borough, Wales. In the 2001 UK census it had a population of 20,090 including that of Penrhyn Bay and Penrhynside, which are within the Llandudno Community...

, plus Rhos-on-Sea

Rhos-on-Sea

Rhos-on-Sea also known as Llandrillo-yn-Rhos in Welsh, or Rhos or Llandrillo , is a seaside resort in Conwy County Borough, Wales. The population was 7,110 in 2001. It is a mile to the north but effectively a suburb of Colwyn Bay, on the coast of North Wales...

, Deganwy

Deganwy

Deganwy is a village in Conwy County Borough in Wales with a population of 3,700. It is in a more English-speaking region of North Wales, with only 1 in 4 residents speaking Welsh as a first language...

 and Llandudno Junction

Llandudno Junction

Llandudno Junction , once known as Tremarl, is a small town in the county borough of Conwy, Wales. It is part of the ancient parish of Llangystennin, and it is located south of Llandudno. It adjoins Deganwy and is to the east of the walled town of Conwy, which is on the opposite side of the River...

. The Great Orme

Great Orme

The Great Orme is a prominent limestone headland on the north coast of Wales situated in Llandudno. It is referred to as Cyngreawdr Fynydd in a poem by the 12th century poet Gwalchmai ap Meilyr...

 lies at the end of the peninsula, and nearby is the Little Orme

Little Orme

The Little Orme is in height. It is one of two headlands that are situated at either end of Llandudno Bay, in Conwy County Borough, Wales. The other, larger, headland is the Great Orme.-Uses:...

.

The area is usually called simply (Y) Creuddyn

Creuddyn

Creuddyn may refer to:* The Creuddyn Peninsula, in Conwy county borough* Creuddyn, Ceredigion, a historic commote of Ceredigion* Creuddyn, Rhos, a historic commote of Cantref Rhos in the kingdom of Gwynedd, and later of Caernarfonshire...

, being the Welsh name of the medieval commote

Commote

A commote , sometimes spelt in older documents as cymwd, was a secular division of land in Medieval Wales. The word derives from the prefix cym- and the noun bod...

 (an administrative unit within a cantref) roughly corresponding to the peninsula itself, though somewhat larger.

The population of the peninsula including the towns mentioned above is around 38,000, making it very densely populated.