diff --git a/init-multiple-databases.sh b/init-multiple-databases.sh
new file mode 100644
index 0000000..19c1c97
--- /dev/null
+++ b/init-multiple-databases.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+set -e
+set -u
+
+function create_database() {
+    local database=$1
+    echo "Creating database '$database'"
+    psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" <<-EOSQL
+        CREATE DATABASE $database;
+        GRANT ALL PRIVILEGES ON DATABASE $database TO $POSTGRES_USER;
+EOSQL
+}
+
+if [ -n "$POSTGRES_MULTIPLE_DATABASES" ]; then
+    echo "Multiple database creation requested: $POSTGRES_MULTIPLE_DATABASES"
+    for db in $(echo $POSTGRES_MULTIPLE_DATABASES | tr ',' ' '); do
+        create_database $db
+    done
+    echo "Multiple databases created"
+fi
\ No newline at end of file