diff --git a/cfg/std.cfg b/cfg/std.cfg
index 8af76755bb3..d40f23ae122 100644
--- a/cfg/std.cfg
+++ b/cfg/std.cfg
@@ -8998,6 +8998,12 @@ initializer list (7) string& replace (const_iterator i1, const_iterator i2, init
       <check>std::filesystem::filesystem_error</check>
       <check>std::bad_variant_access</check>
       <check>std::span</check>
+      <check>std::stringstream</check>
+      <check>std::wstringstream</check>
+      <check>std::istringstream</check>
+      <check>std::wistringstream</check>
+      <check>std::ostringstream</check>
+      <check>std::wostringstream</check>
     </unusedvar>
     <operatorEqVarError>
       <suppress>std::mutex</suppress>
diff --git a/test/cfg/std.cpp b/test/cfg/std.cpp
index 18e14e7d92e..93ed20e9609 100644
--- a/test/cfg/std.cpp
+++ b/test/cfg/std.cpp
@@ -5128,3 +5128,13 @@ std::size_t variableScope_cstr(const char* p) {
     }
     return std::strlen(p);
 }
+
+void unusedvar_stringstream(const char* p)
+{
+    // cppcheck-suppress unreadVariable
+    std::istringstream istr(p);
+    // cppcheck-suppress unreadVariable
+    std::ostringstream ostr(p);
+    // cppcheck-suppress unreadVariable
+    std::stringstream sstr(p);
+}