diff --git a/src/main/java/org/apache/commons/lang3/StringUtils.java b/src/main/java/org/apache/commons/lang3/StringUtils.java
index 056656c0637..bdd3c0b80a1 100644
--- a/src/main/java/org/apache/commons/lang3/StringUtils.java
+++ b/src/main/java/org/apache/commons/lang3/StringUtils.java
@@ -8882,6 +8882,36 @@ public static String truncate(final String str, final int maxWidth) {
         return truncate(str, 0, maxWidth);
     }
 
+    public static String truncateToByteLength(String str, int maxBytes, Charset charset) {
+        if (str == null) {
+            return null;
+        }
+
+        byte[] bytes = StringUtils.getBytes(str, charset);
+        if (bytes.length <= maxBytes) {
+            return str;
+        }
+
+        // Binary search or iterative approach to find the right character length
+        int low = 0;
+        int high = str.codePointCount(0, str.length());
+        int count = 0;
+        while (low <= high) {
+            int mid = low + (high - low) / 2;
+            int charIndex = str.offsetByCodePoints(0, mid);
+            byte[] currentBytes = StringUtils.getBytes(str.substring(0, charIndex), charset);
+            if (currentBytes.length <= maxBytes) {
+                low = mid + 1;
+                count = mid;
+            } else {
+                high = mid - 1;
+            }
+        }
+
+        int idx = str.offsetByCodePoints(0, count);
+        return str.substring(0, idx);
+    }
+
     /**
      * Truncates a String. This will turn
      * "Now is the time for all good men" into "is the time for all".
diff --git a/src/test/java/org/apache/commons/lang3/StringUtilsTest.java b/src/test/java/org/apache/commons/lang3/StringUtilsTest.java
index bff9d842dce..08ac89d2058 100644
--- a/src/test/java/org/apache/commons/lang3/StringUtilsTest.java
+++ b/src/test/java/org/apache/commons/lang3/StringUtilsTest.java
@@ -3089,6 +3089,31 @@ void testTruncate_StringIntInt() {
         assertEquals("", StringUtils.truncate("abcdefghijklmno", Integer.MAX_VALUE, Integer.MAX_VALUE));
     }
 
+    @Test
+    void testTruncateToByteLength() {
+        assertNull(StringUtils.truncateToByteLength(null, 0, Charset.defaultCharset()));
+        assertEquals("abcdefghij", StringUtils.truncateToByteLength("abcdefghijklmno", 10, Charset.defaultCharset()));
+        assertEquals("abcdefghijklmno", StringUtils.truncateToByteLength("abcdefghijklmno", 15, Charset.defaultCharset()));
+        assertEquals("abcdefghijklmno", StringUtils.truncateToByteLength("abcdefghijklmno", 20, Charset.defaultCharset()));
+        assertEquals("\u4F60\u597D\u55CE", StringUtils.truncateToByteLength("\u4F60\u597D\u55CE", 10, Charset.defaultCharset()));
+        assertEquals("\u4F60", StringUtils.truncateToByteLength("\u4F60\u597D\u55CE", 5, Charset.defaultCharset()));
+        assertEquals("\u2713\u2714", StringUtils.truncateToByteLength("\u2713\u2714", 6, Charset.defaultCharset()));
+        assertEquals("", StringUtils.truncateToByteLength("\u2713\u2714", 2, Charset.defaultCharset()));
+        assertEquals("\uD83D\uDE80", StringUtils.truncateToByteLength("\uD83D\uDE80\u2728\uD83C\uDF89", 6, Charset.defaultCharset()));
+        assertEquals("", StringUtils.truncateToByteLength("\uD83D\uDE80\u2728\uD83C\uDF89", 3, Charset.defaultCharset()));
+        assertEquals("", StringUtils.truncateToByteLength("\uD83D\uDE03", 3, Charset.defaultCharset()));
+        assertEquals("\uD83D\uDE03", StringUtils.truncateToByteLength("\uD83D\uDE03", 4, Charset.defaultCharset()));
+        assertEquals("\uD83D\uDE03\uD83D\uDE03", StringUtils.truncateToByteLength(
+                "\uD83D\uDE03\uD83D\uDE03\uD83D\uDE03\uD83D\uDE03\uD83D\uDE03", 9, Charset.defaultCharset()));
+
+        for (int i = 0; i < 100; ++i) {
+            String s = StringUtils.truncateToByteLength("🦊🦊🦊🦊🦊🦊🦊🦊🦊🦊🦊🦊🦊🦊", i, Charset.defaultCharset());
+            assertNotNull(s);
+            byte[] data = s.getBytes();
+            assertTrue(data.length <= i);
+        }
+    }
+
     @Test
     void testUnCapitalize() {
         assertNull(StringUtils.uncapitalize(null));