diff --git a/src/corelib/global/archdetect.cpp b/src/corelib/global/archdetect.cpp
index 1d00b7f5..281e84df 100644
--- a/src/corelib/global/archdetect.cpp
+++ b/src/corelib/global/archdetect.cpp
@@ -59,6 +59,10 @@
 #  define ARCH_PROCESSOR "x86_64"
 #elif defined(Q_PROCESSOR_IA64)
 #  define ARCH_PROCESSOR "ia64"
+#elif defined(Q_PROCESSOR_LOONGARCH_32)
+#  define ARCH_PROCESSOR "loongarch32"
+#elif defined(Q_PROCESSOR_LOONGARCH_64)
+#  define ARCH_PROCESSOR "loongarch64"
 #elif defined(Q_PROCESSOR_MIPS_64)
 #  define ARCH_PROCESSOR "mips64"
 #elif defined(Q_PROCESSOR_MIPS)
diff --git a/src/corelib/global/qprocessordetection.h b/src/corelib/global/qprocessordetection.h
index 8d657208..8ca280ec 100644
--- a/src/corelib/global/qprocessordetection.h
+++ b/src/corelib/global/qprocessordetection.h
@@ -213,6 +213,20 @@
 #  define Q_BYTE_ORDER Q_LITTLE_ENDIAN
 #  define Q_PROCESSOR_WORDSIZE   8
 
+/*
+    LoongArch family, known variants: 32- and 64-bit
+
+    LoongArch is little-endian.
+*/
+#elif defined(__loongarch__)
+#  define Q_PROCESSOR_LOONGARCH
+#  if __loongarch_grlen == 64
+#    define Q_PROCESSOR_LOONGARCH_64
+#  else
+#    define Q_PROCESSOR_LOONGARCH_32
+#  endif
+#  define Q_BYTE_ORDER Q_LITTLE_ENDIAN
+
 /*
     Itanium (IA-64) family, no revisions or variants