diff --git a/libexec/rtld-elf/rtld.1 b/libexec/rtld-elf/rtld.1
--- a/libexec/rtld-elf/rtld.1
+++ b/libexec/rtld-elf/rtld.1
@@ -28,7 +28,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd November 13, 2021
+.Dd November 10, 2022
 .Dt RTLD 1
 .Os
 .Sh NAME
@@ -76,6 +76,14 @@
 Translated to the release level of the operating system.
 .It Pa $PLATFORM
 Translated to the machine hardware platform.
+.It Pa $LIB
+Translated to the system library path component on the platform.
+It is
+.Pa lib
+for native binaries, and typically
+.Pa lib32
+for compat32 binaries.
+Other translations might exist for other ABIs supported on the platform.
 .El
 .Pp
 The
diff --git a/libexec/rtld-elf/rtld.c b/libexec/rtld-elf/rtld.c
--- a/libexec/rtld-elf/rtld.c
+++ b/libexec/rtld-elf/rtld.c
@@ -1200,6 +1200,8 @@
 	{ .kw = "${OSREL}", .pass_obj = false, .subst = uts.release },
 	{ .kw = "$PLATFORM", .pass_obj = false, .subst = uts.machine },
 	{ .kw = "${PLATFORM}", .pass_obj = false, .subst = uts.machine },
+	{ .kw = "$LIB", .pass_obj = false, .subst = TOKEN_LIB },
+	{ .kw = "${LIB}", .pass_obj = false, .subst = TOKEN_LIB },
 };
 
 static char *
diff --git a/libexec/rtld-elf/rtld_paths.h b/libexec/rtld-elf/rtld_paths.h
--- a/libexec/rtld-elf/rtld_paths.h
+++ b/libexec/rtld-elf/rtld_paths.h
@@ -45,6 +45,7 @@
 #define	_BASENAME_RTLD		_COMPAT32_BASENAME_RTLD
 #define	STANDARD_LIBRARY_PATH	"/lib32:/usr/lib32"
 #define	LD_			"LD_32_"
+#define	TOKEN_LIB		"lib32"
 #endif
 
 #ifndef _PATH_ELF_HINTS
@@ -75,6 +76,10 @@
 #define	LD_			"LD_"
 #endif
 
+#ifndef TOKEN_LIB
+#define	TOKEN_LIB		"lib"
+#endif
+
 #ifdef IN_RTLD
 extern const char *ld_elf_hints_default;
 extern const char *ld_path_libmap_conf;