diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 098240ee26cbd9..0d7aad96f5897b 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -4,9 +4,9 @@
       <Uri>https://github.com/dotnet/standard</Uri>
       <Sha>cfe95a23647c7de1fe1a349343115bd7720d6949</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.NETCore.Runtime.ICU.Transport" Version="5.0.0-preview.8.20365.1">
+    <Dependency Name="Microsoft.NETCore.Runtime.ICU.Transport" Version="5.0.0-preview.8.20370.1">
       <Uri>https://github.com/dotnet/icu</Uri>
-      <Sha>7247fa0d9e8faee2cceee6f04856b2c447f41bca</Sha>
+      <Sha>797c523dd8d75096319f3591958f703b8d74d04b</Sha>
     </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>
diff --git a/eng/Versions.props b/eng/Versions.props
index 8366710273c7d5..94c0d597cd5715 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -118,7 +118,7 @@
     <!-- ILLink -->
     <MicrosoftNETILLinkTasksVersion>5.0.0-preview.3.20363.5</MicrosoftNETILLinkTasksVersion>
     <!-- ICU -->
-    <MicrosoftNETCoreRuntimeICUTransportVersion>5.0.0-preview.8.20365.1</MicrosoftNETCoreRuntimeICUTransportVersion>
+    <MicrosoftNETCoreRuntimeICUTransportVersion>5.0.0-preview.8.20370.1</MicrosoftNETCoreRuntimeICUTransportVersion>
     <!-- Mono LLVM -->
     <runtimelinuxarm64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion>9.0.1-alpha.1.20356.1</runtimelinuxarm64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion>
     <runtimelinuxarm64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion>9.0.1-alpha.1.20356.1</runtimelinuxarm64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion>
diff --git a/src/libraries/System.Globalization/tests/CultureInfo/CultureInfoEnglishName.cs b/src/libraries/System.Globalization/tests/CultureInfo/CultureInfoEnglishName.cs
index 23c2032c51cd41..fdb6e4b189fcee 100644
--- a/src/libraries/System.Globalization/tests/CultureInfo/CultureInfoEnglishName.cs
+++ b/src/libraries/System.Globalization/tests/CultureInfo/CultureInfoEnglishName.cs
@@ -11,8 +11,18 @@ public class CultureInfoEnglishName
         public static IEnumerable<object[]> EnglishName_TestData()
         {
             yield return new object[] { CultureInfo.CurrentCulture.Name, CultureInfo.CurrentCulture.EnglishName };
-            yield return new object[] { "en-US", "English (United States)" };
-            yield return new object[] { "fr-FR", "French (France)" };
+
+            if (PlatformDetection.IsNotBrowser)
+            {
+                yield return new object[] { "en-US", "English (United States)" };
+                yield return new object[] { "fr-FR", "French (France)" };
+            }
+            else
+            {
+                // Browser's ICU doesn't contain CultureInfo.EnglishName
+                yield return new object[] { "en-US", "en (US)" };
+                yield return new object[] { "fr-FR", "fr (FR)" };
+            }
         }
 
         [Theory]
diff --git a/src/libraries/System.Globalization/tests/CultureInfo/CultureInfoNativeName.cs b/src/libraries/System.Globalization/tests/CultureInfo/CultureInfoNativeName.cs
index b97a645b8b2a57..58429b132138cc 100644
--- a/src/libraries/System.Globalization/tests/CultureInfo/CultureInfoNativeName.cs
+++ b/src/libraries/System.Globalization/tests/CultureInfo/CultureInfoNativeName.cs
@@ -11,8 +11,18 @@ public class CultureInfoNativeName
         public static IEnumerable<object[]> NativeName_TestData()
         {
             yield return new object[] { CultureInfo.CurrentCulture.Name, CultureInfo.CurrentCulture.NativeName };
-            yield return new object[] { "en-US", "English (United States)" };
-            yield return new object[] { "en-CA", "English (Canada)" };
+            
+            if (PlatformDetection.IsNotBrowser)
+            {
+                yield return new object[] { "en-US", "English (United States)" };
+                yield return new object[] { "en-CA", "English (Canada)" };
+            }
+            else
+            {
+                // Browser's ICU doesn't contain CultureInfo.NativeName
+                yield return new object[] { "en-US", "en (US)" };
+                yield return new object[] { "en-CA", "en (CA)" };
+            }
         }
 
         [Theory]
diff --git a/src/libraries/System.Globalization/tests/DateTimeFormatInfo/DateTimeFormatInfoTests.cs b/src/libraries/System.Globalization/tests/DateTimeFormatInfo/DateTimeFormatInfoTests.cs
index 1689c9e312d2db..52cda26a787aef 100644
--- a/src/libraries/System.Globalization/tests/DateTimeFormatInfo/DateTimeFormatInfoTests.cs
+++ b/src/libraries/System.Globalization/tests/DateTimeFormatInfo/DateTimeFormatInfoTests.cs
@@ -66,7 +66,12 @@ public void NativeCalendarName_Get_ReturnsExpected(DateTimeFormatInfo dtfi, Cale
             try
             {
                 dtfi.Calendar = calendar;
-                Assert.Equal(nativeCalendarName, dtfi.NativeCalendarName);
+
+                if (PlatformDetection.IsNotBrowser)
+                {
+                    // Browser's ICU doesn't contain NativeCalendarName,
+                    Assert.Equal(nativeCalendarName, dtfi.NativeCalendarName);
+                }
             }
             catch
             {
diff --git a/src/libraries/System.Globalization/tests/NumberFormatInfo/NumberFormatInfoNumberGroupSizes.cs b/src/libraries/System.Globalization/tests/NumberFormatInfo/NumberFormatInfoNumberGroupSizes.cs
index 045d3e0b585be7..62ae02d3aa4a4c 100644
--- a/src/libraries/System.Globalization/tests/NumberFormatInfo/NumberFormatInfoNumberGroupSizes.cs
+++ b/src/libraries/System.Globalization/tests/NumberFormatInfo/NumberFormatInfoNumberGroupSizes.cs
@@ -13,8 +13,8 @@ public static IEnumerable<object[]> NumberGroupSizes_TestData()
             yield return new object[] { NumberFormatInfo.InvariantInfo, new int[] { 3 } };
             yield return new object[] { CultureInfo.GetCultureInfo("en-US").NumberFormat, new int[] { 3 } };
 
-            // Culture does not exist on Windows 7
-            if (!PlatformDetection.IsWindows7)
+            // Culture does not exist on Windows 7 and in Browser's ICU
+            if (!PlatformDetection.IsWindows7 && PlatformDetection.IsNotBrowser)
             {
                 yield return new object[] { CultureInfo.GetCultureInfo("ur-IN").NumberFormat, NumberFormatInfoData.UrINNumberGroupSizes() };
             }
diff --git a/src/libraries/System.Globalization/tests/System/Globalization/RegionInfoTests.cs b/src/libraries/System.Globalization/tests/System/Globalization/RegionInfoTests.cs
index dd99a40e94ca83..2cb86dc56da24c 100644
--- a/src/libraries/System.Globalization/tests/System/Globalization/RegionInfoTests.cs
+++ b/src/libraries/System.Globalization/tests/System/Globalization/RegionInfoTests.cs
@@ -90,20 +90,51 @@ public void DisplayName(string name, string expected)
             }
         }
 
+        public static IEnumerable<object[]> NativeName_TestData()
+        {
+            if (PlatformDetection.IsNotBrowser)
+            {
+                yield return new object[] { "GB", "United Kingdom" };
+                yield return new object[] { "SE", "Sverige" };
+                yield return new object[] { "FR", "France" };
+            }
+            else
+            {
+                // Browser's ICU doesn't contain RegionInfo.NativeName
+                yield return new object[] { "GB", "GB" };
+                yield return new object[] { "SE", "SE" };
+                yield return new object[] { "FR", "FR" };
+            }
+        }
+
         [Theory]
-        [InlineData("GB", "United Kingdom")]
-        [InlineData("SE", "Sverige")]
-        [InlineData("FR", "France")]
+        [MemberData(nameof(NativeName_TestData))]
         public void NativeName(string name, string expected)
         {
             Assert.Equal(expected, new RegionInfo(name).NativeName);
         }
 
+        public static IEnumerable<object[]> EnglishName_TestData()
+        {
+            if (PlatformDetection.IsNotBrowser)
+            {
+                yield return new object[] { "en-US", new string[] { "United States" } };
+                yield return new object[] { "US", new string[] { "United States" } };
+                yield return new object[] { "zh-CN", new string[] { "China", "People's Republic of China", "China mainland" }};
+                yield return new object[] { "CN", new string[] { "China", "People's Republic of China", "China mainland" } };
+            }
+            else
+            {
+                // Browser's ICU doesn't contain RegionInfo.EnglishName
+                yield return new object[] { "en-US", new string[] { "US" } };
+                yield return new object[] { "US", new string[] { "US" } };
+                yield return new object[] { "zh-CN", new string[] { "CN" }};
+                yield return new object[] { "CN", new string[] { "CN" } };
+            }
+        }
+
         [Theory]
-        [InlineData("en-US", new string[] { "United States" })]
-        [InlineData("US", new string[] { "United States" })]
-        [InlineData("zh-CN", new string[] { "China", "People's Republic of China", "China mainland" })]
-        [InlineData("CN", new string[] { "China", "People's Republic of China", "China mainland" })]
+        [MemberData(nameof(EnglishName_TestData))]
         public void EnglishName(string name, string[] expected)
         {
             string result = new RegionInfo(name).EnglishName;