diff --git a/README.md b/README.md
index 6b3412d8..a7403073 100644
--- a/README.md
+++ b/README.md
@@ -284,6 +284,7 @@ A few notes are in order regarding this data structure:
 | mya-Mymr    | Burmese                 |
 | nan-Latn    | Hokkien (pe̍h-oē-jī)     |
 | nan-Latn-tl | Hokkien (Tâi-lô)        |
+| nhi-Latn    | West Sierra Puebla Nahuatl        |
 | nld-Latn    | Dutch                   |
 | nya-Latn    | Chichewa                |
 | ood-Latn-alv| Tohono O'odham (Alvarez–Hale) |
diff --git a/epitran/data/map/nhi-Latn.csv b/epitran/data/map/nhi-Latn.csv
new file mode 100644
index 00000000..325c0297
--- /dev/null
+++ b/epitran/data/map/nhi-Latn.csv
@@ -0,0 +1,53 @@
+Orth,Phon
+c,k
+ce,se
+ci,si
+cu,kʷ
+ch,t͡ʃ
+h,h
+j,h
+hu,w
+k,k
+kw,kʷ
+l,l
+m,m
+n,n
+p,p
+q,k
+qu,k
+qui,ki
+s,s
+t,t
+tl,t͡ɬ
+ts,t͡s
+tz,t͡s
+w,w
+x,ʃ
+z,s
+a,a
+e,e
+i,i
+y,j
+o,o
+u,w
+uh,w
+aa,a
+ee,e
+ii,i
+oo,o
+b,b
+v,b
+d,d
+f,f
+ge,xe
+gi,xi
+g,ɡ
+gu,ɡw
+gue,ɡe
+gui,ɡi
+gü,ɡw
+ll,ʝ
+ñ,ɲ
+r,ɾ
+rr,r
+sh,ʃ
\ No newline at end of file
diff --git a/epitran/test/test_westernsierrapueblanahuatl.py b/epitran/test/test_westernsierrapueblanahuatl.py
new file mode 100644
index 00000000..dff03139
--- /dev/null
+++ b/epitran/test/test_westernsierrapueblanahuatl.py
@@ -0,0 +1,56 @@
+# -*- coding: utf-8 -*-
+
+from __future__ import unicode_literals
+
+import unittest
+
+import epitran
+
+
+class TestWesternSierraPueblaNahuatl(unittest.TestCase):
+    def setUp(self):
+        self.epi = epitran.Epitran('nhi-Latn')
+
+    def test_monamictililuitl(self):
+        tr = self.epi.transliterate('monamictililuitl')
+        self.assertEqual(tr, 'monamiktililwit͡ɬ')
+
+    def test_nej(self):
+        tr = self.epi.transliterate('nej')
+        self.assertEqual(tr, 'neh')
+    
+    def test_yej(self):
+        tr = self.epi.transliterate('yej')
+        self.assertEqual(tr, 'jeh')
+
+    def test_ijkwak(self):
+        tr = self.epi.transliterate('ijkwak')
+        self.assertEqual(tr, 'ihkʷak')
+
+    def test_okxikowaya(self): # non-ILV (w-u)
+        tr = self.epi.transliterate('okxikowaya')
+        self.assertEqual(tr, 'okʃikowaja')
+
+    def test_ocxicouaya(self): # ILV orthography
+        tr = self.epi.transliterate('ocxicouaya')
+        self.assertEqual(tr, 'okʃikowaja')
+
+    def test_tlaokoxtokej(self): # non-ILV (ke-que)
+        tr = self.epi.transliterate('tlaokoxtokej')
+        self.assertEqual(tr, 't͡ɬaokoʃtokeh')
+
+    def test_tlaocoxtoqueh(self): # ILV orthography
+        tr = self.epi.transliterate('tlaocoxtoqueh')
+        self.assertEqual(tr, 't͡ɬaokoʃtokeh')
+
+    def test_ikchiyas(self): # non-ILV (k-c)
+        tr = self.epi.transliterate('ikchiyas')
+        self.assertEqual(tr, 'ikt͡ʃijas')
+    
+    def test_icchiyas(self): # ILV orthography
+        tr = self.epi.transliterate('icchiyas')
+        self.assertEqual(tr, 'ikt͡ʃijas')
+
+    def test_iitlakoyook(self): # non-ILV orthography (indicates vowel length)
+        tr = self.epi.transliterate('iitlakoyook')
+        self.assertEqual(tr, 'it͡ɬakojok')
\ No newline at end of file