Vietnamese Alphabet (Chữ Quốc Ngữ)

In Brief

Vietnamese uses a Latin-based alphabet called chữ Quốc ngữ, with 29 letters. It includes the special consonant đ and six additional vowel letters formed with diacritics: ă, â, ê, ô, ơ, ư. Separate marks show the six tones, so a word such as Việt can carry both a vowel mark and a tone mark on the same letter.

Overview

The Vietnamese writing system looks familiar to an English reader because it uses Latin letters and is written from left to right. That familiarity is helpful, but it can also be misleading: Vietnamese letters do not always have their English sounds. For example, đ is the letter that commonly represents a sound like English d, while Vietnamese d has a different pronunciation that varies by region.

Learning the alphabet is an A1 foundation skill. Vietnamese spelling records much more pronunciation information than English spelling does: it identifies the main vowel pattern, many initial and final consonants, and the tone. Once you know the spelling conventions, an unfamiliar word often gives you a strong guide to its pronunciation. The reverse is not always effortless, especially because regional accents merge some sounds and because several letter combinations can represent related sounds.

Two kinds of marks must be kept separate from the beginning. A vowel diacritic (a mark that makes a distinct vowel letter) belongs to ă, â, ê, ô, ơ, ư. A tone mark tells you the pitch or voice pattern of a whole syllable. Removing either kind of mark can change the word, and Vietnamese writing normally requires both.

How It Works

The 29 letters

Vietnamese has 12 vowel letters and 17 consonant letters. Alphabetical order treats the modified letters as separate letters, not merely decorated versions of the base letter.

Position	Letter	Position	Letter	Position	Letter
1	a	11	h	21	q
2	ă	12	i	22	r
3	â	13	k	23	s
4	b	14	l	24	t
5	c	15	m	25	u
6	d	16	n	26	ư
7	đ	17	o	27	v
8	e	18	ô	28	x
9	ê	19	ơ	29	y
10	g	20	p	—	—

The letters f, j, w, z are outside the traditional 29-letter inventory. You may still encounter them in foreign names, scientific notation, brand names, internet language, or abbreviations. Their appearance does not add them to the standard alphabet.

The vowel letters

The 12 written vowel letters are:

Letter	Basic learner cue	Important point
a	an open a sound	Contrasts with shorter ă
ă	a shorter vowel than a	The breve is part of the letter
â	a central, relatively short vowel	Not simply English a
e	an open front vowel	Contrasts with ê
ê	a closer front vowel	The circumflex is part of the letter
i	an ee-like vowel	Also appears in vowel combinations
o	an open rounded vowel	Contrasts with ô and ơ
ô	a closer rounded vowel	The circumflex is part of the letter
ơ	an unrounded central/back vowel	Has no simple English spelling equivalent
u	an oo-like rounded vowel	Often combines with other vowels
ư	an unrounded vowel	Do not pronounce it as ordinary u
y	often has the vowel value of i	Distribution and spelling depend on the word

These cues are only starting points. English vowel spellings vary greatly by accent, and Vietnamese vowel distinctions need listening practice. In particular, a–ă, â–ơ, and o–ô are meaningful contrasts, not optional styling.

Vietnamese syllables can contain combinations such as ai, ao, iê, uô, ươ, oai, and ươi. Do not assume that every written vowel is a separate syllable. For example, ngoài is one syllable even though it contains several vowel letters.

Consonants and letter combinations

Some consonant sounds are written with one letter, while others use a digraph (two letters that function together), such as ch, gh, gi, kh, ng, ngh, nh, ph, th, or tr. The alphabet counts letters, not digraphs, so ng does not become a thirtieth letter.

Several high-value spelling patterns are worth recognizing early:

Spelling	Beginner cue	Example
đ	a d-like sound	đi — go
ng, ngh	the final sound of English sing, also possible at the start	nghe — listen
nh	roughly like ny in canyon	nhà — house
ph	usually an f-like sound	phở — pho
kh	a breathy/fricative sound absent from most English accents	không — no/not
th	pronounced with a strong release of air, not English th	thích — like
ch, tr	values vary by region and may contrast differently	chào, trời
gi	pronunciation varies by region	gia đình — family
qu	conventionally written as a unit before a following vowel	quốc gia — nation

Vietnamese p occurs mainly in final position in ordinary native vocabulary, though it also appears initially in loans. Final c, ch, p, and t are unreleased stops: they end abruptly and are not followed by an extra vowel. Final m, n, ng, and nh are nasal endings.

Six tones, five tone marks

Vietnamese has six lexical tones: pitch or voice patterns that can distinguish words. The unmarked tone, ngang, has no tone mark. The other five are shown in writing.

Tone name	Mark	Example on a	Broad beginner description
ngang	none	a	level
huyền	`	à	falling
sắc	´	á	rising
hỏi	̉	ả	dipping or falling-rising, depending on accent
ngã	~	ã	broken/glottalized rising in many northern accents
nặng	. below	ạ	low and constricted/glottalized

Tone belongs to the entire syllable even though its mark is placed on one vowel letter. A vowel can therefore carry two visible features at once: ế is ê plus the sắc tone; ợ is ơ plus the nặng tone. Type and learn the complete character rather than treating the accents as decoration.

Where the tone mark goes

In a simple syllable with one vowel, placement is obvious: má, mẹ, ngủ. In a vowel sequence, the mark is written on the vowel selected by Vietnamese orthographic rules. Common examples include chào, người, tiếng, and ngoài. A practical beginner strategy is to memorize the fully accented spelling with each word instead of trying to reconstruct it from an unaccented form.

Modern spelling places the mark on the main vowel of the syllable. With iê, yê, uô, and ươ, placement can depend on whether the syllable has a final consonant or final glide: compare mía and miếng, or múa and muốn. You may also encounter competing conventional placements in combinations involving initial qu or gi, especially in older texts or different editorial styles. This does not mean tones are optional; it reflects variation in how the vowel structure has been analyzed for spelling.

Examples in Context

Vietnamese	English	Note
Xin chào!	Hello!	ch is a digraph; chào carries the huyền tone.
Cảm ơn bạn.	Thank you.	ả has hỏi; ơ is a separate vowel letter.
Tôi là người Việt Nam.	I am Vietnamese.	Việt combines ê with the nặng tone.
Bạn tên là gì?	What is your name?	ì carries the huyền tone.
Tôi tên là An.	My name is An.	An has the unmarked ngang tone.
Đây là nhà tôi.	This is my house.	đ and d are different letters; nh works together.
Tôi thích học tiếng Việt.	I like studying Vietnamese.	thích ends abruptly in ch.
Bạn có khỏe không?	How are you?	kh is not an English k sound.
Tôi muốn uống nước.	I want to drink water.	muốn, uống, and nước show tone marks in vowel groups.
Ngoài trời đang mưa.	It is raining outside.	ngoài is one syllable; ng can begin a word.
Gia đình tôi ở Hà Nội.	My family is in Hanoi.	The pronunciation of gi differs by region.
Tôi đang nghe nhạc.	I am listening to music.	ngh appears before e; nh begins nhạc.
Đây là quốc kỳ Việt Nam.	This is the Vietnamese national flag.	quốc shows the qu spelling pattern.
Phở rất ngon.	Pho is very delicious.	ph is normally f-like; final ng is nasal.

Pronunciation guides such as xin chào [sin tɕàːo] and cảm ơn [kǎːm ɤːn] can be useful approximations, but IPA transcriptions differ with dialect and analytical convention. The written forms remain the same across regions.

Common Mistakes

Dropping the marks when typing

• Wrong: Cam on ban.
• Right: Cảm ơn bạn.
• Why: Removing marks erases both vowel identity and tone. Unaccented text may sometimes be guessed in informal messages, but it is not standard Vietnamese spelling and can be ambiguous.

Treating vowel marks as tone marks

• Wrong idea: ê is just e with a tone.
• Right idea: e and ê are different vowel letters; either can also take a tone mark, as in é and ế.
• Why: The circumflex, breve, and horn identify vowels. Acute, grave, hook, tilde, and dot marks identify tones.

Pronouncing d as English d

• Wrong: Reading đi and di as if both began with English d.
• Right: Keep đ and d distinct; đ is the ordinary d-like letter.
• Why: The pronunciation of d varies by region, but it is not interchangeable with đ in spelling.

Reading digraphs one letter at a time

• Wrong: Adding separate n and g sounds at the start of nghe.
• Right: Treat ngh as one consonant spelling.
• Why: Vietnamese uses several two- and three-letter spelling units. Their letters are still alphabetized separately, but their sound must be learned as a unit.

Adding an English-style release after final consonants

• Wrong: Pronouncing Việt with a strongly released final t or adding a small vowel after it.
• Right: End the syllable abruptly at the final consonant.
• Why: Vietnamese final stop consonants are typically unreleased. An extra release can make speech sound unnatural and disrupt the tone.

Assuming familiar letters have English sounds

• Wrong: Reading th in thích like the consonant in English think.
• Right: Learn Vietnamese th as an aspirated t-type sound.
• Why: A shared alphabet does not guarantee shared sound values.

Usage Notes

Capitalization is broadly familiar to English readers: capitalize the first word of a sentence and proper names such as Việt Nam, Hà Nội, and Nguyễn. Vietnamese does not capitalize every word in an ordinary concept name. You will see variation in how titles and institutional names are styled, so follow the source's convention rather than imposing English title case.

Vietnamese is normally written with spaces between syllables. A single word can contain more than one spaced syllable: Việt Nam is a proper name, while gia đình “family” and học sinh “student” are lexical units written with spaces. Therefore, spaces do not map perfectly onto English-style word boundaries.

Standard spelling is shared nationally, but pronunciation is regional. Northern, Central, and Southern speakers may realize d, gi, r, s, x, ch, tr, certain final consonants, and tones differently. Do not “correct” a consistent regional pronunciation merely because it differs from one recording. For a beginner, it is useful to choose one main pronunciation model while learning to recognize common alternatives.

Beyond the Basics

You do not need to master the following details at A1, but they explain why spelling and sound do not always match in a perfectly simple way.

Vietnamese orthography preserves distinctions that some regional accents merge, while other accents preserve them. In parts of the North, d, gi, and r may sound alike or close; many Southern speakers distinguish r but merge d and gi in another way. Likewise, ch/tr and s/x may be merged in some northern speech but distinguished in much southern and careful speech. Spelling remains distinct even when a speaker's accent merges the sounds.

Some consonant spellings are conditioned by the following vowel. For example, ngh is used before e, ê, i, while ng is used elsewhere; compare nghe “listen” with ngon “delicious.” Similarly, gh occurs before e, ê, i, while g appears in other environments. c, k, and q also participate in spelling patterns that cannot be predicted from English habits alone.

The alphabet is highly informative, but it is not a complete phonetic transcription. Vowel length, the exact shape of a tone, coarticulation (neighboring sounds influencing one another), and dialect are not fully captured by simply naming each letter. Advanced pronunciation study should therefore combine spelling with recordings, mouth-position guidance, and feedback from speakers of the accent you are learning.

Finally, foreign letters and spellings are increasingly visible in modern life. You may see F, J, W, or Z in names, technical vocabulary, license plates, and brands. When spelling aloud, speakers may use borrowed letter names or clarify the foreign origin. This practical extension does not change the official core inventory of 29 letters.

Practice Tips

1. Learn marks in two layers. First sort cards into the 12 vowel letters (a/ă/â, e/ê, o/ô/ơ, u/ư, i, y). Then add the six tone patterns. This prevents you from confusing vowel identity with tone.
2. Copy whole syllables with audio. Use short groups such as ma, mà, má, mả, mã, mạ, then repeat with words you actually need. Listen, say the syllable, and type it with all marks.
3. Build a digraph checklist. Highlight ng/ngh, nh, ph, kh, th, ch, tr, gi, and qu in a short Vietnamese text. Read each unit as a spelling pattern instead of decoding one letter at a time.

Related Concepts

• Next step: Tones — learn the six tone categories and how they distinguish words.
• Next step: Vowel System — study the vowel contrasts and common vowel combinations in depth.
• Next step: Special Consonant Clusters — focus on digraphs such as ng, ngh, and nh and on regionally variable consonants.
• Advanced: North–South Dialect Differences — understand systematic pronunciation and vocabulary differences across major regional varieties.