diff --git a/icu4c/source/i18n/unicode/measunit.h b/icu4c/source/i18n/unicode/measunit.h
index 21e9bb7f154..6a64ae2bb3e 100644
--- a/icu4c/source/i18n/unicode/measunit.h
+++ b/icu4c/source/i18n/unicode/measunit.h
@@ -2585,19 +2585,25 @@ class U_I18N_API MeasureUnit: public UObject {
     static MeasureUnit getKilogram();
 
     /**
-     * Returns by pointer, unit of mass: metric-ton.
-     * (renamed to tonne in CLDR 42 / ICU 72)
+     * Returns by pointer, unit of mass: metric-ton
+     * (renamed to tonne in CLDR 42 / ICU 72).
      * Caller owns returned value and must free it.
-     * Also see {@link #getMetricTon()}.
+     * Note: In ICU 74 this will be deprecated in favor of
+     * createTonne(), which is currently draft but will
+     * become stable in ICU 74, and which uses the preferred naming.
+     * Also see {@link #getMetricTon()} and {@link #createTonne()}.
      * @param status ICU error code.
      * @stable ICU 54
      */
     static MeasureUnit *createMetricTon(UErrorCode &status);
 
     /**
-     * Returns by value, unit of mass: metric-ton.
-      * (renamed to tonne in CLDR 42 / ICU 72)
-    * Also see {@link #createMetricTon()}.
+     * Returns by value, unit of mass: metric-ton
+     * (renamed to tonne in CLDR 42 / ICU 72).
+     * Note: In ICU 74 this will be deprecated in favor of
+     * getTonne(), which is currently draft but will
+     * become stable in ICU 74, and which uses the preferred naming.
+     * Also see {@link #createMetricTon()} and {@link #getTonne()}.
      * @stable ICU 64
      */
     static MeasureUnit getMetricTon();
diff --git a/icu4j/main/classes/core/src/com/ibm/icu/util/MeasureUnit.java b/icu4j/main/classes/core/src/com/ibm/icu/util/MeasureUnit.java
index d96589e5820..3ee12c4eecc 100644
--- a/icu4j/main/classes/core/src/com/ibm/icu/util/MeasureUnit.java
+++ b/icu4j/main/classes/core/src/com/ibm/icu/util/MeasureUnit.java
@@ -1606,7 +1606,9 @@ public class MeasureUnit implements Serializable {
     public static final MeasureUnit KILOGRAM = MeasureUnit.internalGetInstance("mass", "kilogram");
 
     /**
-     * Constant for unit of mass: metric-ton (renamed to tonne in CLDR 42 / ICU 72)
+     * Constant for unit of mass: metric-ton (renamed to tonne in CLDR 42 / ICU 72).
+     * Note: In ICU 74 this will be deprecated in favor of TONNE, which is currently
+     * draft but will become stable in ICU 74, and which uses the preferred naming.
      * @stable ICU 54
      */
     public static final MeasureUnit METRIC_TON = MeasureUnit.internalGetInstance("mass", "tonne");