--- a/Source/JavaScriptCore/runtime/IntlCache.cpp	

+++ a/Source/JavaScriptCore/runtime/IntlCache.cpp	

@@ -26,6 +26,7 @@ 

 #include "config.h"

 #include "IntlCache.h"

+#include "IntlDisplayNames.h"

 #include <wtf/Vector.h>

 namespace JSC {

@@ -53,6 +54,7 @@ Vector<UChar, 32> IntlCache::getBestDateTimePattern(const CString& locale, const

     return patternBuffer;

 }

+#if HAVE(ICU_U_LOCALE_DISPLAY_NAMES)

 Vector<UChar, 32> IntlCache::getFieldDisplayName(const CString& locale, UDateTimePatternField field, UDateTimePGDisplayWidth width, UErrorCode& status)

 {

     auto sharedGenerator = getSharedPatternGenerator(locale, status);

@@ -64,5 +66,6 @@ Vector<UChar, 32> IntlCache::getFieldDisplayName(const CString& locale, UDateTim

         return { };

     return buffer;

 }

+#endif

 } // namespace JSC

--- a/Source/JavaScriptCore/runtime/IntlCache.h	

+++ a/Source/JavaScriptCore/runtime/IntlCache.h	

@@ -25,6 +25,7 @@ 

 #pragma once

+#include "IntlDisplayNames.h"

 #include <unicode/udatpg.h>

 #include <wtf/Noncopyable.h>

 #include <wtf/text/CString.h>

@@ -39,7 +40,9 @@ public:

     IntlCache() = default;

     Vector<UChar, 32> getBestDateTimePattern(const CString& locale, const UChar* skeleton, unsigned skeletonSize, UErrorCode&);

+#if HAVE(ICU_U_LOCALE_DISPLAY_NAMES)

     Vector<UChar, 32> getFieldDisplayName(const CString& locale, UDateTimePatternField, UDateTimePGDisplayWidth, UErrorCode&);

+#endif

 private:

     UDateTimePatternGenerator* getSharedPatternGenerator(const CString& locale, UErrorCode& status)

--- a/Source/JavaScriptCore/runtime/IntlDisplayNames.cpp	

+++ a/Source/JavaScriptCore/runtime/IntlDisplayNames.cpp	

@@ -110,6 +110,7 @@ void IntlDisplayNames::initializeDisplayNames(JSGlobalObject* globalObject, JSVa

     m_languageDisplay = intlOption<LanguageDisplay>(globalObject, options, vm.propertyNames->languageDisplay, { { "dialect"_s, LanguageDisplay::Dialect }, { "standard"_s, LanguageDisplay::Standard } }, "languageDisplay must be either \"dialect\" or \"standard\""_s, LanguageDisplay::Dialect);

     RETURN_IF_EXCEPTION(scope, void());

+#if HAVE(ICU_U_LOCALE_DISPLAY_NAMES)

     UErrorCode status = U_ZERO_ERROR;

     UDisplayContext contexts[] = {

@@ -137,6 +138,10 @@ void IntlDisplayNames::initializeDisplayNames(JSGlobalObject* globalObject, JSVa

         throwTypeError(globalObject, scope, "failed to initialize DisplayNames"_s);

         return;

     }

+#else

+    throwTypeError(globalObject, scope, "Failed to initialize Intl.DisplayNames since used feature is not supported in the linked ICU version"_s);

+    return;

+#endif

 }

 // https://tc39.es/proposal-intl-displaynames/#sec-Intl.DisplayNames.prototype.of

@@ -146,6 +151,7 @@ JSValue IntlDisplayNames::of(JSGlobalObject* globalObject, JSValue codeValue) co

     VM& vm = globalObject->vm();

     auto scope = DECLARE_THROW_SCOPE(vm);

+#if HAVE(ICU_U_LOCALE_DISPLAY_NAMES)

     ASSERT(m_displayNames);

     auto code = codeValue.toWTFString(globalObject);

     RETURN_IF_EXCEPTION(scope, { });

@@ -350,6 +356,11 @@ JSValue IntlDisplayNames::of(JSGlobalObject* globalObject, JSValue codeValue) co

         return throwTypeError(globalObject, scope, "Failed to query a display name."_s);

     }

     return jsString(vm, String(buffer));

+#else

+    UNUSED_PARAM(codeValue);

+    throwTypeError(globalObject, scope, "Failed to initialize Intl.DisplayNames since used feature is not supported in the linked ICU version"_s);

+    return { };

+#endif

 }

 // https://tc39.es/proposal-intl-displaynames/#sec-Intl.DisplayNames.prototype.resolvedOptions

--- a/Source/JavaScriptCore/runtime/IntlDisplayNames.h	

+++ a/Source/JavaScriptCore/runtime/IntlDisplayNames.h	

@@ -31,6 +31,13 @@ 

 namespace JSC {

+#if !defined(HAVE_ICU_U_LOCALE_DISPLAY_NAMES)

+// We need 61 or later since part of implementation uses UCURR_NARROW_SYMBOL_NAME.

+#if U_ICU_VERSION_MAJOR_NUM >= 61

+#define HAVE_ICU_U_LOCALE_DISPLAY_NAMES 1

+#endif

+#endif

+

 enum class RelevantExtensionKey : uint8_t;

 class IntlDisplayNames final : public JSNonFinalObject {

--- a/Source/JavaScriptCore/runtime/IntlObject.cpp	

+++ a/Source/JavaScriptCore/runtime/IntlObject.cpp	

@@ -153,7 +153,6 @@ namespace JSC {

   getCanonicalLocales   intlObjectFuncGetCanonicalLocales            DontEnum|Function 1

   Collator              createCollatorConstructor                    DontEnum|PropertyCallback

   DateTimeFormat        createDateTimeFormatConstructor              DontEnum|PropertyCallback

-  DisplayNames          createDisplayNamesConstructor                DontEnum|PropertyCallback

   Locale                createLocaleConstructor                      DontEnum|PropertyCallback

   NumberFormat          createNumberFormatConstructor                DontEnum|PropertyCallback

   PluralRules           createPluralRulesConstructor                 DontEnum|PropertyCallback

@@ -239,6 +238,11 @@ void IntlObject::finishCreation(VM& vm, JSGlobalObject* globalObject)

     Base::finishCreation(vm);

     ASSERT(inherits(vm, info()));

     JSC_TO_STRING_TAG_WITHOUT_TRANSITION();

+#if HAVE(ICU_U_LOCALE_DISPLAY_NAMES)

+    putDirectWithoutTransition(vm, vm.propertyNames->DisplayNames, createDisplayNamesConstructor(vm, this), static_cast<unsigned>(PropertyAttribute::DontEnum));

+#else

+    UNUSED_PARAM(&createDisplayNamesConstructor);

+#endif

 #if HAVE(ICU_U_LIST_FORMATTER)

     putDirectWithoutTransition(vm, vm.propertyNames->ListFormat, createListFormatConstructor(vm, this), static_cast<unsigned>(PropertyAttribute::DontEnum));

 #else

--- a/Source/cmake/OptionsGTK.cmake	

+++ a/Source/cmake/OptionsGTK.cmake	

@@ -14,7 +14,7 @@ find_package(Freetype 2.4.2 REQUIRED)

 find_package(LibGcrypt 1.6.0 REQUIRED)

 find_package(GLIB 2.56.4 REQUIRED COMPONENTS gio gio-unix gobject gthread gmodule)

 find_package(HarfBuzz 0.9.18 REQUIRED COMPONENTS ICU)

-find_package(ICU 61.2 REQUIRED COMPONENTS data i18n uc)

+find_package(ICU 60.2 REQUIRED COMPONENTS data i18n uc)

 find_package(JPEG REQUIRED)

 find_package(LibXml2 2.8.0 REQUIRED)

 find_package(PNG REQUIRED)