diff --git a/Makefile.am b/Makefile.am
index 05421461..03f7fde2 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -881,6 +881,7 @@ mbrola: \
 	espeak-ng-data/mbrola_ph/ir1_phtrans \
 	espeak-ng-data/mbrola_ph/it1_phtrans \
 	espeak-ng-data/mbrola_ph/it3_phtrans \
+	espeak-ng-data/mbrola_ph/jp_phtrans \
 	espeak-ng-data/mbrola_ph/la1_phtrans \
 	espeak-ng-data/mbrola_ph/lt_phtrans \
 	espeak-ng-data/mbrola_ph/mx1_phtrans \
@@ -1003,6 +1004,10 @@ espeak-ng-data/mbrola_ph/it3_phtrans: phsource/mbrola/it3 src/espeak-ng
 	mkdir -p espeak-ng-data/mbrola_ph
 	ESPEAK_DATA_PATH=$(PWD) src/espeak-ng --compile-mbrola=phsource/mbrola/it3
 
+espeak-ng-data/mbrola_ph/jp_phtrans: phsource/mbrola/jp src/espeak-ng
+	mkdir -p espeak-ng-data/mbrola_ph
+	ESPEAK_DATA_PATH=$(PWD) src/espeak-ng --compile-mbrola=phsource/mbrola/jp
+
 espeak-ng-data/mbrola_ph/la1_phtrans: phsource/mbrola/la1 src/espeak-ng
 	mkdir -p espeak-ng-data/mbrola_ph
 	ESPEAK_DATA_PATH=$(PWD) src/espeak-ng --compile-mbrola=phsource/mbrola/la1
diff --git a/docs/mbrola.md b/docs/mbrola.md
index 77892752..7adec138 100644
--- a/docs/mbrola.md
+++ b/docs/mbrola.md
@@ -101,9 +101,9 @@ The following MBROLA voices are available. Not all are supported by eSpeak NG.
 | `it2`        | Italian              | female | `mb-it2` |                |
 | `it3`        | Italian              | male   | `mb-it3` | `mbrola-it3`   |
 | `it4`        | Italian              | female | `mb-it4` | `mbrola-it4`   |
-| `jp1`        | Japanese             | male   |          |                |
-| `jp2`        | Japanese             | female |          |                |
-| `jp3`        | Japanese             | female |          |                |
+| `jp1`        | Japanese             | male   | `mb-jp1` |                |
+| `jp2`        | Japanese             | female | `mb-jp2` |                |
+| `jp3`        | Japanese             | female | `mb-jp3` |                |
 | `la1`        | Classical Latin      | male   | `mb-la1` | `mbrola-la1`   |
 | `lt1`        | Lithuanian           | male   | `mb-lt1` | `mbrola-lt1`   |
 | `lt2`        | Lithuanian           | male   | `mb-lt2` | `mbrola-lt2`   |
diff --git a/espeak-ng-data/voices/mb/mb-jp1 b/espeak-ng-data/voices/mb/mb-jp1
new file mode 100644
index 00000000..f08eade4
--- /dev/null
+++ b/espeak-ng-data/voices/mb/mb-jp1
@@ -0,0 +1,4 @@
+name japanese-mbrola-1
+language ja 1
+gender male
+mbrola jp1 jp_phtrans
diff --git a/espeak-ng-data/voices/mb/mb-jp2 b/espeak-ng-data/voices/mb/mb-jp2
new file mode 100644
index 00000000..988d6fc9
--- /dev/null
+++ b/espeak-ng-data/voices/mb/mb-jp2
@@ -0,0 +1,6 @@
+pitch 120 260
+name japanese-mbrola-2
+language ja 2
+gender female
+pitch 160 300
+mbrola jp2 jp_phtrans
diff --git a/espeak-ng-data/voices/mb/mb-jp3 b/espeak-ng-data/voices/mb/mb-jp3
new file mode 100644
index 00000000..454792e5
--- /dev/null
+++ b/espeak-ng-data/voices/mb/mb-jp3
@@ -0,0 +1,5 @@
+name japanese-mbrola-3
+language ja 3
+gender female
+pitch 160 300
+mbrola jp3 jp_phtrans
diff --git a/phsource/mbrola/jp b/phsource/mbrola/jp
new file mode 100644
index 00000000..8e8f1f76
--- /dev/null
+++ b/phsource/mbrola/jp
@@ -0,0 +1,45 @@
+volume 15
+
+0  a:    NULL   0   a:
+0  a     NULL   0   a
+0  b     NULL   0   b
+0  C     NULL   0   c
+0  c     NULL   0   c
+0  d_z\  NULL   0   dZ
+0  d     NULL   0   d
+0  e:    NULL   0   e:
+0  e     NULL   0   e
+0  f     NULL   0   f
+0  g     NULL   0   g
+0  h     NULL   0   h
+0  i~    NULL   0   i
+0  i:    NULL   0   i:
+0  i     NULL   0   i
+0  y     NULL   0   y
+0  _j    NULL   0   j
+0  j     NULL   0   j
+0  k     NULL   0   k
+0  l     NULL   0   l
+0  m     NULL   0   m
+0  N\    NULL   0   n
+0  n     NULL   0   n
+0  o:    NULL   0   o:
+0  o     NULL   0   o
+0  p\    NULL   0   p
+0  p     NULL   0   p
+0  q     NULL   0   q
+0  r`    NULL   0   r
+0  r     NULL   0   r
+0  s\    NULL   0   S
+0  s     NULL   0   s
+0  t_s\  NULL   0   tS
+0  t_s   NULL   0   ts
+0  t     NULL   0   t
+0  u:    NULL   0   u:
+0  u~    NULL   0   U
+0  u     NULL   0   u
+0  v     NULL   0   v
+0  w     NULL   0   w
+0  x     NULL   0   x
+0  z     NULL   0   z
+