The charts below show the way in which the
International Phonetic Alphabet (IPA) represents Vietnamese language pronunciations in Wikipedia articles. There are two major standards: one of Hanoi and one of Ho Chi Minh City. Each makes distinctions that the other does not; neither standard is preferred over the other at Wikipedia. The central dialects, which make the distinctions of both, are generally represented in articles here, except if a local pronunciation is clearly more relevant.
Vietnamese phonology for a more thorough look at the sounds of Vietnamese.
(unwritten, occurs before initial vowels)
uh -oh; informal British bu tton
almost like bee
almost like day but "swallowed"
cô, kem, quốc
French a, Spanish gneau ense
 s port
almost like show
American s, but further towards the teeth
choose (unaspirated), with tongue "bunched up"
similar to plea sure, with tongue "bunched up"
oanh; q uốc
i, ta y
 bo y
n ( after /i, e/)
 o nion (various pronunciations)
n ( after /u, o/)
ng ( after /u, o, ɔ/)
 like lo ng, but with an 'm' after the 'ng'
t ( after /i, e/)
 te chnical (various pronunciations)
t ( after /u, o/)
c ( after /u, o, ɔ/)
 like pi ck, but with a 'p' after the 'ck'
o, triệ u
 ho w
roughly like h ay
p ur (RP)
i; qu y
similar to glass es
roughly like b owl
ó; x oong
iên, b ia
b eer (British English) (starting with the ”ee” in “beer”, but moving to the “a” in “bal ance”)
ương, ch ưa
No English equivalent
uống, m ua
s ure (British English) (starting with the ”u” in “r ule”, but moving to the “o” in “pers on”)
Ho Chi Minh City
ả,  ậc
[ appears only in loanwords, and is often replaced by p] [. ɓ]
[ may be used as a v] spelling pronunciation in southern dialects.
^ a b c In northern dialects, when the velar finals
/k, ŋ/ follow the front vowels /i, e, ɛ/, the consonant becomes pre-velar [k̟, ŋ̟], and the vowels /e, ɛ/ become [əj, aj].
^ a b c d In southern dialects, the vowels
/i, e, ɛ/ become [ɨ, ə, a] before the alveolar consonants [t, n].
^ a b c In most dialects, when the velar finals
/k, ŋ/ follow the round vowels /u, o, ɔ/, the consonant is strongly labialized [kʷ, ŋʷ] or doubly-articulated [k͡p, ŋ͡m], and the vowels /o, ɔ/ become [əw, aw].
^ a b Before a final /p, t, k/, the six tones of Vietnamese are reduced to two.
^ In isolation, this can be a dipping tone. The usual IPA diacritic for dipping tone is
[a᷉ ə᷉], which differs from the nasalization mark [ ˜ ] only in being angular in shape, and is not widely supported by fonts.