diff --git a/icu4c/source/configure.ac b/icu4c/source/configure.ac
index 8ea2dd97796..b7531b8ace4 100644
--- a/icu4c/source/configure.ac
+++ b/icu4c/source/configure.ac
@@ -913,14 +913,6 @@ else
 fi
 AC_SUBST(U_HAVE_STRTOD_L)
 
-# Check if C++17 std::string_view is available.
-AC_LANG_PUSH([C++])
-AC_CHECK_TYPE(std::string_view, [], [], [[#include <string_view>]])
-if test "x$ac_cv_type_std__string_view" = xyes; then :
-  CONFIG_CPPFLAGS="${CONFIG_CPPFLAGS} -DU_HAVE_STRING_VIEW=1"
-fi
-AC_LANG_POP([C++])
-
 # Checks for typedefs
 AC_CHECK_TYPE(int8_t,signed char)
 AC_CHECK_TYPE(uint8_t,unsigned char)
diff --git a/icu4c/source/test/intltest/strtest.cpp b/icu4c/source/test/intltest/strtest.cpp
index dff7bc40974..9b28e81076b 100644
--- a/icu4c/source/test/intltest/strtest.cpp
+++ b/icu4c/source/test/intltest/strtest.cpp
@@ -14,10 +14,7 @@
 *   created by: Markus W. Scherer
 */
 
-#ifdef U_HAVE_STRING_VIEW
 #include <string_view>
-#endif
-
 #include <cstddef>
 #include <string.h>
 #include <limits>
@@ -246,9 +243,7 @@ void StringTest::runIndexedTest(int32_t index, UBool exec, const char *&name, ch
     TESTCASE_AUTO(TestStringPieceComparisons);
     TESTCASE_AUTO(TestStringPieceFind);
     TESTCASE_AUTO(TestStringPieceOther);
-#ifdef U_HAVE_STRING_VIEW
     TESTCASE_AUTO(TestStringPieceStringView);
-#endif
     TESTCASE_AUTO(TestStringPieceU8);
     TESTCASE_AUTO(TestByteSink);
     TESTCASE_AUTO(TestCheckedArrayByteSink);
@@ -512,7 +507,6 @@ StringTest::TestStringPieceOther() {
     assertEquals("data()", piece.data(), other.data());
 }
 
-#ifdef U_HAVE_STRING_VIEW
 void
 StringTest::TestStringPieceStringView() {
     static constexpr char msg[] = "Kapow!";
@@ -523,7 +517,6 @@ StringTest::TestStringPieceStringView() {
     assertEquals("size()", piece.size(), view.size());
     assertEquals("data()", piece.data(), view.data());
 }
-#endif
 
 void
 StringTest::TestStringPieceU8() {
diff --git a/icu4c/source/test/intltest/strtest.h b/icu4c/source/test/intltest/strtest.h
index 05fc9cf66d3..d6aa0f7bb53 100644
--- a/icu4c/source/test/intltest/strtest.h
+++ b/icu4c/source/test/intltest/strtest.h
@@ -46,9 +46,7 @@ private:
     void TestStringPieceFind();
     void TestStringPieceComparisons();
     void TestStringPieceOther();
-#ifdef U_HAVE_STRING_VIEW
     void TestStringPieceStringView();
-#endif
     void TestStringPieceU8();
     void TestByteSink();
     void TestCheckedArrayByteSink();