diff --git a/.gitattributes b/.gitattributes
index 8866ac5a3f6..020f6b83d68 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -79,6 +79,8 @@ icu4c/source/test/testdata/en_US.uni -text
 icu4c/source/test/testdata/uni-text.txt -text
 icu4j/src/com/ibm/demo/rbbi/genesis.dict -text
 icu4j/src/com/ibm/icu/dev/data/holidays_jp.ucs -text
+icu4j/src/com/ibm/icu/impl/data/thai_dict -text
+icu4j/src/com/ibm/text/resources/thai_dict -text
 icu4j/src/data/holidays_jp.ucs -text
 
 # The following file types are stored in Git-LFS.
diff --git a/icu4j/src/com/ibm/icu/impl/data/thai_dict b/icu4j/src/com/ibm/icu/impl/data/thai_dict
new file mode 100755
index 00000000000..b48d6366dd5
Binary files /dev/null and b/icu4j/src/com/ibm/icu/impl/data/thai_dict differ
diff --git a/icu4j/src/com/ibm/text/resources/thai_dict b/icu4j/src/com/ibm/text/resources/thai_dict
new file mode 100755
index 00000000000..b48d6366dd5
Binary files /dev/null and b/icu4j/src/com/ibm/text/resources/thai_dict differ