Letter A or a
Cornish name  or â
Letter B or b
Cornish name Bê or bê
Letter C or c
Cornish name Cê or cê
Letter D or d
Cornish name Dê or dê
Letter E
Cornish name Ê or ê
Letter F
Cornish name Ef or ef
Letter G
Cornish name Gê or gê
Letter H
Cornish name Hâ or hâ
Letter I
Cornish name I or i
When employing a font that does not distinguish between capital I and small L, the alternative capital form Î can be used
Letter J
Cornish name Jê or jê
Letter K
Cornish name Kê or kê (or Kâ kâ)
Letter L
Cornish name Èl or èl
Letter M
Cornish name Èm or èm
Letter N
Cornish name Èn or èn
Letter O
Cornish name Ô or ô
Letter P
Cornish name Pê or pê
Letter Q
Cornish name Qwo or qwo
Letter R
Cornish name Èr or èr
Letter S
Cornish name Ès or ès (or Ess ess)
Letter T
Cornish name Tê or tê
Letter U
Cornish name Û or û (pronounced with or without an initial y-sound)
Speakers who say this vowel with lip-rounding may call it U u, so pronounced
Letter V
Cornish name Vê or vê
Letter W
Cornish name Wê or wê
Letter X
Cornish name Ex or ex
Letter Y
Cornish name Yê or yê
Letter Z
Cornish name Zê or zê (or Zèd zèd)
Apostrophe
Cornish name collverk f collverkys
Capital letter
Cornish name lytheren vrâs f lytherednow brâs
Circumflex accent
Cornish name aken grobm f akednow crobm
Diaeresis
Cornish name aken dhewboynt f akednow dewboynt
Grave accent
Cornish name aken dhieskynus f akednow dieskynus
Hyphen
Cornish name nos jùnya m nosow jùnya
Small letter
Cornish name lytheren vian f lytherednow bian
It may be handy to remember that ef i qwo ex are the only letter names without an accent (‘diacritical mark’), along with ess u if you employ them.
Words are arranged alphabetically according to the same principles as for English. Digraphs are not treated as separate letters of the alphabet, in contrast to Welsh. Thus, for example, dhyworth ‘from’ and them ‘theme’ will be found under the letters d and t respectively in an alphabetical list. However, informal digraph names dhê and thê are sometimes heard.
When spelling out aloud a word that contains a vowel carrying an accent (‘diacritical mark’), the name of the letter is said first, followed by the name of the relevant accent.
Although the Cornish for ‘letter of the alphabet’ is lytheren, a feminine noun, the names of the letters themselves are treated as masculine, so none of them mutate after an ‘the’. The letter names have no plural form. For multiples of a letter, when playing Scrabble® for example, we say gê dywweyth ‘two Gs’, èl terweyth ‘three Ls’.
For geminate consonants we use the adjective dobyl: e.g. ès (ess) dobyl ‘double S’. But speakers who pre-occlude geminate M and geminate N are more likely to spell out bê èm and dê èn aloud than say èm dobyl and èn dobyl. The name vê dobyl as an alternative to wê is not recommended, as it can cause confusion in the case of geminate v in a word like covva 'hiding-place'.