diff --git a/include/wx/platinfo.h b/include/wx/platinfo.h
index 4a119cf10d..863d94f51f 100644
--- a/include/wx/platinfo.h
+++ b/include/wx/platinfo.h
@@ -260,6 +260,8 @@ public:
         { return GetBitnessName(); }
     wxString GetEndiannessName() const
         { return GetEndiannessName(m_endian); }
+    wxString GetCpuArchitectureName() const
+        { return m_cpuArch; }
     wxString GetOperatingSystemDescription() const
         { return m_osDesc; }
     wxString GetDesktopEnvironment() const
@@ -301,6 +303,8 @@ public:
         { SetBitness(n); }
     void SetEndianness(wxEndianness n)
         { m_endian = n; }
+    void SetCpuArchitectureName(const wxString& cpuArch)
+        { m_cpuArch = cpuArch; }
 
     void SetDesktopEnvironment(const wxString& de)
         { m_desktopEnv = de; }
@@ -386,6 +390,9 @@ protected:
 
     // endianness of the machine
     wxEndianness m_endian;
+
+    // CPU architecture family name, possibly empty if unknown
+    wxString m_cpuArch;
 };
 
 
diff --git a/interface/wx/platinfo.h b/interface/wx/platinfo.h
index 2346d67015..67cd046f97 100644
--- a/interface/wx/platinfo.h
+++ b/interface/wx/platinfo.h
@@ -368,6 +368,15 @@ public:
     */
     wxEndianness GetEndianness() const;
 
+    /**
+        Returns the CPU architecture name, if available.
+
+        @see wxGetCpuArchitectureName()
+
+        @since 3.1.5
+     */
+    wxString GetCpuArchitectureName() const;
+
     /**
         Returns the run-time major version of the OS associated with this
         wxPlatformInfo instance.
diff --git a/interface/wx/utils.h b/interface/wx/utils.h
index b241060a96..1d17b6986e 100644
--- a/interface/wx/utils.h
+++ b/interface/wx/utils.h
@@ -995,6 +995,9 @@ bool wxIsPlatformLittleEndian();
     "arm64", or "i86pc". The name for the same CPU running on the same
     hardware can vary across operating systems.
 
+    The returned string may be empty if the CPU architecture couldn't be
+    recognized.
+
     @since 3.1.5
 */
 wxString wxGetCpuArchitectureName();
diff --git a/src/common/platinfo.cpp b/src/common/platinfo.cpp
index 6bfd18c890..f06e0706e7 100644
--- a/src/common/platinfo.cpp
+++ b/src/common/platinfo.cpp
@@ -197,6 +197,7 @@ void wxPlatformInfo::InitForCurrentPlatform()
     m_osDesc = wxGetOsDescription();
     m_endian = wxIsPlatformLittleEndian() ? wxENDIAN_LITTLE : wxENDIAN_BIG;
     m_bitness = wxIsPlatform64Bit() ? wxBITNESS_64 : wxBITNESS_32;
+    m_cpuArch = wxGetCpuArchitectureName();
 
 #ifdef __LINUX__
     m_ldi = wxGetLinuxDistributionInfo();
diff --git a/src/msw/utils.cpp b/src/msw/utils.cpp
index 053f7e2c54..6090e1351d 100644
--- a/src/msw/utils.cpp
+++ b/src/msw/utils.cpp
@@ -1297,7 +1297,7 @@ wxString wxGetCpuArchitectureName()
 
     case PROCESSOR_ARCHITECTURE_UNKNOWN:
     default:
-        return "Unknown";
+        return wxString();
     }
 }