Show ContentsOat History, Family Crest & Coats of Arms

The distinguished surname Oat emerged among the industrious people of Flanders, which was an important trading partner and political ally of Britain during the Middle Ages. As a result of the frequent commercial intercourse between the Flemish and English nations, many Flemish migrants settled in Britain. In early times, people were known by only a single name. However, as the population grew and people traveled further afield, it became increasingly necessary to assume an additional name to differentiate between bearers of the same personal name. One of the most common classes of surname is the patronymic surname, which was usually derived from the first name of the person's father. Flemish surnames of this type are often characterized by the diminutive suffix -kin, which became very frequent in England during the 14th century. The surname Oat is derived from the Old French personal names Odes, Otes, Odon, and Otton. These are all derived from the Old German names Odo and Otto, which literally mean riches. 1 Occasionally, the name Oat is a local surname derived from the settlement of Ott in Belgium. 2

Another source claims the name is occupational as in "a nickname for a Dealer in Oats." 3

Early Origins of the Oat family

The surname Oat was first found in the Domesday Book of 1086 where Ode, Odo, Otho were recorded. 4 Later in Lincolnshire, Radulfus filius Ode was recorded in 1160 and later again, Willelmus filius Ote (Otte) was recorded in the Pipe Rolls for Essex in 1177. In Suffolk, William Ode was registered in the Curia Regis Rolls for 1213. "Belchamp Otton (Essex) owes its attribute (Otes 1254, Oton 1255) to Otlo (temp. Hy 2), descendant of Otto or Odo 4. " 5

The Hundredorum Rolls for 1273 included entries as a forename and surname: Hotys de Parme, Lincolnshire; and Andreas Otes, Norfolk as did the Yorkshire Poll Tax Rolls of 1379: Otes de Howorth; and Johannes Oteson

In Ireland, the name is "a synonym by pseudo-translation of Quirke." (GIF)

Early History of the Oat family

This web page shows only a small excerpt of our Oat research. Another 159 words (11 lines of text) covering the years 1160, 1177, 1213, 1275, 1610, 1646, 1649, 1654, 1666, 1674, 1683, 1697 and 1705 are included under the topic Early Oat History in all our PDF Extended History products and printed products wherever possible.

Oat Spelling Variations

Flemish surnames are characterized by a large number of spelling variations. One reason for this is that medieval English lacked definite spelling rules. The spellings of surnames were also influenced by the official court languages, which were French and Latin. Names were rarely spelled consistently in medieval times. Scribes and church officials recorded names as they sounded, rather than adhering to specific spelling rules, and people often had their names registered in several different forms throughout their lives. One of the greatest reasons for change is the linguistic uniqueness of the Flemish settlers in England, who spoke a language closely related to Dutch. The pronunciation and spelling of Flemish names were often altered to suit the tastes of English-speaking people. In many cases, the first, final, or middle syllables of surnames were eliminated. The name has been spelled Oates, Oats, Otes, Otis, Oaten, Otten, Oadt, Otton, Oton and many more.

Early Notables of the Oat family

Prominent in the family at this time was

  • Titus Oates (1649-1705) English conspirator and perjurer who fabricated the Popish Plot and was fined for calling the Duke of York (the future James II) a traitor...
  • According to Oates's own testimony when appealing for the payment of the arrears of his pension in 1697, his aged mother, whose name is unknown, was living in that year...

Ireland Migration of the Oat family to Ireland

Some of the Oat family moved to Ireland, but this topic is not covered in this excerpt. More information about their life in Ireland is included in all our PDF Extended History products and printed products wherever possible.


United States Oat migration to the United States +

In the immigration and passenger lists a number of early immigrants bearing the name Oat were found:

Oat Settlers in United States in the 18th Century
  • Jacob Oat, who landed in Pennsylvania in 1733 6
  • Michael Oat, who arrived in Pennsylvania in 1733 6


  1. Smith, Eldson Coles, New Dictionary of American Family Names New York: Harper & Row, 1956. Print
  2. Barber, Henry, British Family Names London: Elliot Stock, 62 Paternoster Row, 1894. Print.
  3. Harrison, Henry, Surnames of the United Kingdom: A Concise Etymological Dictionary Baltimore: Geneological Publishing Company, 2013. Print
  4. Williams, Dr Ann. And G.H. Martin, Eds., Domesday Book A Complete Translation. London: Penguin, 1992. Print. (ISBN 0-141-00523-8)
  5. Reaney, P.H and R.M. Wilson, A Dictionary of English Surnames. London: Routledge, 1991. Print. (ISBN 0-415-05737-X)
  6. Filby, P. William, Meyer, Mary K., Passenger and immigration lists index : a guide to published arrival records of about 500,000 passengers who came to the United States and Canada in the seventeenth, eighteenth, and nineteenth centuries. 1982-1985 Cumulated Supplements in Four Volumes Detroit, Mich. : Gale Research Co., 1985, Print (ISBN 0-8103-1795-8)


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