Coggin History, Family Crest & Coats of Arms
Celtic in origin, the name Coggin came from the rugged landscape of Wales. The name's origins go back to a time when the Coggin family lived in the parish of Cogan, which is in the diocese of Llandaff in the county of Glamorgan. The name literally means "a cup or bowl"  and probably meant "dweller in a bowl-shaped valley." 
Early Origins of the Coggin family
The surname Coggin was first found in Glamorganshire (Welsh: Sir Forgannwg), a region of South Wales, anciently part of the Welsh kingdom of Glywysing at Cogan, a parish, in the union of Cardiff, hundred of Dinas-Powys, county of Glamorgan, South Wales. 
"Cogan or Coggan is an ancient west of England name. There was a John de Cogan, of Hunispull, Somerset, in the reign of Edward I.; and in the reign of Richard II., William Cogan was sheriff of the county. De Cogan was a name found also in different parts of Devonshire in the time of Edward I., and it has long been an old Tiverton name." 
Exploring Somerset in more detail, Richard Cogan was registered there 1 Edward III (during the first year of the reign of King Edward III)  and the Hundredorum Rolls of 1273 included: John de Cogan, Somerset; and John de Cogan, Devon 
"From this it is clear that the south-west forms of the surname are derived from the Llandaff parish. To Somerset and Devon was not a long journey." 
In Devon, Bampton was the passed from the Paganell "heiress to Sir Milo Cogan, 'the great soldier and undertaker of the Irish Conquest.' Her descendant, Richard Cogan, had licence in 1336 to castellate his mansion house at Bampton, and to empark his wood and other lands at Uffculme. Every vestige of the castle has long disappeared." 
Scotland was home to the family about this time. "Peter Cogan witnessed the gift of an acre of land in Coldingham to the monks of St. Cuthbert, and Robert Cogan witnessed a charter of lands in Raynigton to the Priory of Coldingham, 1275. Robert Cogan del counte de Berewyk rendered homage, 1296. [(to King Edward I during his invasion of Scotland)]" 
The name "is uncommon in the Isle of Man." 
Early History of the Coggin family
This web page shows only a small excerpt of our Coggin research. Another 183 words (13 lines of text) covering the years 1172, 1605, 1716, 1723, 1780, 1809, 1684, 1731, 1545, 1607, 1545, 1686, 1591, 1593, 1607, 1233, 1278, 1230 and 1172 are included under the topic Early Coggin History in all our PDF Extended History products and printed products wherever possible.
Coggin Spelling Variations
Compared to other ancient cultures found in the British Isles, the number of Welsh surnames are relatively few, but there are an inordinately large number of spelling variations. These spelling variations began almost as soon as surname usage became common. The most obvious reason was the challenge of translating from Welsh into English. As a result, people could not specify how to spell their own names leaving the specific recording up to the individual scribe or priest. Those recorders would then spell the names as they heard them, causing many different variations. Later, many Welsh names were recorded in English. This transliteration process was extremely imprecise since the Brythonic Celtic language of the Welsh used many sounds the English language was not accustomed to. Finally, some variations occurred by the individual's design: a branch loyalty within a family, a religious adherence, or even patriotic affiliations were indicated by spelling variations of one's name. The Coggin name over the years has been spelled Cogan, Cogen, Coogan, Coogen, Coogin, Coggan, Coggen, Coggin, Coggins, Gogan, Goggin and many more.
Early Notables of the Coggin family (pre 1700)
Prominent amongst the family during the late Middle Ages was Thomas Cogan (1545?-1607), English physician, born about 1545 at Chard, Somersetshire. He was educated at Oxford. He practised as a physician at Manchester. Before 1686 he married Ellen, daughter of Sir Edmund...
In the United States, the name Coggin is the 13,320th most popular surname with an estimated 2,487 people with that name. 
Migration of the Coggin family to Ireland
Some of the Coggin family moved to Ireland, but this topic is not covered in this excerpt.
Many people from Wales joined the general migration to North America in the 19th and 20th centuries, searching for land, work, and freedom. Like the many other immigrants from the British Isles, they made a significant contribution to the development of Canada and the United States. The Welsh and their descendents added a rich cultural tradition to the newly developed towns, cities, and villages. An investigation of the immigration and passenger lists has revealed a number of people bearing the name Coggin:
Coggin Settlers in United States in the 17th Century
Coggin Settlers in United States in the 19th Century
The motto was originally a war cry or slogan. Mottoes first began to be shown with arms in the 14th and 15th centuries, but were not in general use until the 17th century. Thus the oldest coats of arms generally do not include a motto. Mottoes seldom form part of the grant of arms: Under most heraldic authorities, a motto is an optional component of the coat of arms, and can be added to or changed at will; many families have chosen not to display a motto.
Motto: Constans fidei
Motto Translation: Constant to honor.