thumb|A Lacandon language speaker in Mexico.
Lacandon (Jach-tʼaan in the revised orthography of the Instituto Nacional de Lenguas Indigenas) is a Mayan language spoken by all of the 1,000 Lacandon people in the state of Chiapas in Mexico. Within Chiapas, Lacandon is spoken in Betel, Lacanjá San Quintín, Lake Metzaboc, Metzaboc, and Najá.
Consonants
{| class="wikitable" style=text-align:center
|-
! colspan=2 |
! Labial
! Alveolar
! Palatal
! Velar
! Laryngeal
|-
! colspan=2| Nasal
| m
| n
|
|
|
|-
! rowspan=3| Plosive
!
| p
| t
|
| k
| rowspan=3| '
|-
!
| pʼ
| tʼ
|
| kʼ
|-
!
| bʼ
|
|
|
|-
! rowspan=2| Affricate
!
|
| tz
| ch
|
|
|-
!
|
| tzʼ
| chʼ
|
|
|-
! colspan=2| Fricative
|
| s
| x
|
| j
|-
! colspan=2| Approximant
| w
| l
| y
|
|
|-
! colspan=2| Flap
|
| r
|
|
|
|}
Vowels
{| class="wikitable IPA" style="text-align:center"
|-
!
!Front
!Central
!Back
|-
!High
|i ii
|
|u uu
|-
!Mid
|e ee
|ä
|o oo
|-
!Low
|
|a aa
|
|}