| Diacritics | Name | Notes |
|---|---|---|
| ំ | nĭkkôhĕt (និគ្គហិត) | niggahita; nasalizes the inherent vowels and some of the dependent vowels, see anusvara, sometimes used to represent in Sanskrit loanwords |
| ះ | reăhmŭkh (រះមុខ) | "shining face"; adds final aspiration to dependent or inherent vowels, usually omitted, corresponds to the visarga diacritic, it maybe included as dependent vowel symbol |
| ៈ | yŭkôleăkpĭntŭ (យុគលពិន្ទុ) | yugalabindu ("pair of dots"); adds final glottalness to dependent or inherent vowels, usually omitted |
| ៉ | musĕkâtônd (មូសិកទន្ត) | mūsikadanta ("mouse teeth"); used to convert some o-series consonants to the a-series |
| ៊ | reisâpt (ត្រីសព្ទ) | trīsabda; used to convert some a-series consonants to the o-series |
| ុ | kbiĕh kraôm (ក្បៀសក្រោម) | also known as bŏkcheung (បុកជើង); used in place when the diacritics treisâpt and musĕkâtônd impede with superscript vowels |
| ៌' | bântăk (បន្តក់) | used to shorten some vowels |
| ៌ | rôbat (របាទ) répheăk (រេផៈ) |
rapāda, repha; behave similarly to the tôndâkhéat, corresponds to the Devanagari diacritic repha, however it lost its original function which was to represent a vocalic r |
| ៍ | tôndâkhéat (ទណ្ឌឃាដ) | daṇḍaghāta; used to render some letters as unpronounced |
| ៎ | kakâbat (កាកបាទ) | kākapāda ("crow's foot"); more a punctuation mark than a diacritic; used in writing to indicate the rising intonation of an exclamation or interjection; often placed on particles such as /na/, /nɑː/, /nɛː/, /vəːj/, and the feminine response /cah/ |
| ៏ | âsda (អស្តា) | denotes stressed intonation in some single-consonant words |
| ័ | sanhyoŭk sannha (សំយោគសញ្ញា) | represents a short inherent vowel in Sanskrit and Pali words; usually omitted |
| ៑ | vĭréam (វិរាម) | a mostly obsolete diacritic, corresponds to the virāma |
| ្ | cheung (ជើង) | a.w. coeng; a sign developed for Unicode to input subscript consonants, appearance of this sign varies among fonts |
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