diff --git a/bfd/elfxx-riscv.c b/bfd/elfxx-riscv.c
index b43d2cfa0fab..40047e3f563b 100644
--- a/bfd/elfxx-riscv.c
+++ b/bfd/elfxx-riscv.c
@@ -1248,6 +1248,7 @@ static struct riscv_supported_ext riscv_supported_std_z_ext[] =
   {"zicsr",		ISA_SPEC_CLASS_20190608,	2, 0,  0 },
   {"zifencei",		ISA_SPEC_CLASS_20191213,	2, 0,  0 },
   {"zifencei",		ISA_SPEC_CLASS_20190608,	2, 0,  0 },
+  {"zihintntl",		ISA_SPEC_CLASS_DRAFT,		1, 0,  0 },
   {"zihintpause",	ISA_SPEC_CLASS_DRAFT,		2, 0,  0 },
   {"zmmul",		ISA_SPEC_CLASS_DRAFT,		1, 0,  0 },
   {"zawrs",		ISA_SPEC_CLASS_DRAFT,		1, 0,  0 },
@@ -2383,6 +2384,12 @@ riscv_multi_subset_supports (riscv_parse_subset_t *rps,
       return riscv_subset_supports (rps, "zicsr");
     case INSN_CLASS_ZIFENCEI:
       return riscv_subset_supports (rps, "zifencei");
+    case INSN_CLASS_ZIHINTNTL:
+      return riscv_subset_supports (rps, "zihintntl");
+    case INSN_CLASS_ZIHINTNTL_AND_C:
+      return (riscv_subset_supports (rps, "zihintntl")
+	      && (riscv_subset_supports (rps, "c")
+		  || riscv_subset_supports (rps, "zca")));
     case INSN_CLASS_ZIHINTPAUSE:
       return riscv_subset_supports (rps, "zihintpause");
     case INSN_CLASS_M:
@@ -2576,6 +2583,17 @@ riscv_multi_subset_supports_ext (riscv_parse_subset_t *rps,
       return "zicsr";
     case INSN_CLASS_ZIFENCEI:
       return "zifencei";
+    case INSN_CLASS_ZIHINTNTL:
+      return "zihintntl";
+    case INSN_CLASS_ZIHINTNTL_AND_C:
+      if (!riscv_subset_supports (rps, "zihintntl")
+	  && !riscv_subset_supports (rps, "c")
+	  && !riscv_subset_supports (rps, "zca"))
+	return _ ("zihintntl' and `c', or `zihintntl' and `zca");
+      else if (!riscv_subset_supports (rps, "zihintntl"))
+	return "zihintntl";
+      else
+	return _ ("c' or `zca");
     case INSN_CLASS_ZIHINTPAUSE:
       return "zihintpause";
     case INSN_CLASS_M:
diff --git a/gas/testsuite/gas/riscv/zihintntl-na.d b/gas/testsuite/gas/riscv/zihintntl-na.d
new file mode 100644
index 000000000000..c32b563ca279
--- /dev/null
+++ b/gas/testsuite/gas/riscv/zihintntl-na.d
@@ -0,0 +1,33 @@
+#as: -march=rv32i_zihintntl
+#source: zihintntl.s
+#objdump: -d -M no-aliases
+
+.*:[ 	]+file format .*
+
+Disassembly of section .text:
+
+0+000 <target>:
+[ 	]+[0-9a-f]+:[ 	]+00200033[ 	]+ntl\.p1
+[ 	]+[0-9a-f]+:[ 	]+01b28023[ 	]+sb[ 	]+s11,0\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+00300033[ 	]+ntl\.pall
+[ 	]+[0-9a-f]+:[ 	]+01b28123[ 	]+sb[ 	]+s11,2\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+00400033[ 	]+ntl\.s1
+[ 	]+[0-9a-f]+:[ 	]+01b28223[ 	]+sb[ 	]+s11,4\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+00500033[ 	]+ntl\.all
+[ 	]+[0-9a-f]+:[ 	]+01b28323[ 	]+sb[ 	]+s11,6\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+900a[ 	]+c\.ntl\.p1
+[ 	]+[0-9a-f]+:[ 	]+01b28023[ 	]+sb[ 	]+s11,0\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+900e[ 	]+c\.ntl\.pall
+[ 	]+[0-9a-f]+:[ 	]+01b28123[ 	]+sb[ 	]+s11,2\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+9012[ 	]+c\.ntl\.s1
+[ 	]+[0-9a-f]+:[ 	]+01b28223[ 	]+sb[ 	]+s11,4\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+9016[ 	]+c\.ntl\.all
+[ 	]+[0-9a-f]+:[ 	]+01b28323[ 	]+sb[ 	]+s11,6\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+900a[ 	]+c\.ntl\.p1
+[ 	]+[0-9a-f]+:[ 	]+01b28423[ 	]+sb[ 	]+s11,8\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+900e[ 	]+c\.ntl\.pall
+[ 	]+[0-9a-f]+:[ 	]+01b28523[ 	]+sb[ 	]+s11,10\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+9012[ 	]+c\.ntl\.s1
+[ 	]+[0-9a-f]+:[ 	]+01b28623[ 	]+sb[ 	]+s11,12\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+9016[ 	]+c\.ntl\.all
+[ 	]+[0-9a-f]+:[ 	]+01b28723[ 	]+sb[ 	]+s11,14\(t0\)
diff --git a/gas/testsuite/gas/riscv/zihintntl.d b/gas/testsuite/gas/riscv/zihintntl.d
new file mode 100644
index 000000000000..d799a662d709
--- /dev/null
+++ b/gas/testsuite/gas/riscv/zihintntl.d
@@ -0,0 +1,32 @@
+#as: -march=rv32i_zihintntl
+#objdump: -d
+
+.*:[ 	]+file format .*
+
+Disassembly of section .text:
+
+0+000 <target>:
+[ 	]+[0-9a-f]+:[ 	]+00200033[ 	]+ntl\.p1
+[ 	]+[0-9a-f]+:[ 	]+01b28023[ 	]+sb[ 	]+s11,0\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+00300033[ 	]+ntl\.pall
+[ 	]+[0-9a-f]+:[ 	]+01b28123[ 	]+sb[ 	]+s11,2\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+00400033[ 	]+ntl\.s1
+[ 	]+[0-9a-f]+:[ 	]+01b28223[ 	]+sb[ 	]+s11,4\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+00500033[ 	]+ntl\.all
+[ 	]+[0-9a-f]+:[ 	]+01b28323[ 	]+sb[ 	]+s11,6\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+900a[ 	]+ntl\.p1
+[ 	]+[0-9a-f]+:[ 	]+01b28023[ 	]+sb[ 	]+s11,0\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+900e[ 	]+ntl\.pall
+[ 	]+[0-9a-f]+:[ 	]+01b28123[ 	]+sb[ 	]+s11,2\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+9012[ 	]+ntl\.s1
+[ 	]+[0-9a-f]+:[ 	]+01b28223[ 	]+sb[ 	]+s11,4\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+9016[ 	]+ntl\.all
+[ 	]+[0-9a-f]+:[ 	]+01b28323[ 	]+sb[ 	]+s11,6\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+900a[ 	]+ntl\.p1
+[ 	]+[0-9a-f]+:[ 	]+01b28423[ 	]+sb[ 	]+s11,8\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+900e[ 	]+ntl\.pall
+[ 	]+[0-9a-f]+:[ 	]+01b28523[ 	]+sb[ 	]+s11,10\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+9012[ 	]+ntl\.s1
+[ 	]+[0-9a-f]+:[ 	]+01b28623[ 	]+sb[ 	]+s11,12\(t0\)
+[ 	]+[0-9a-f]+:[ 	]+9016[ 	]+ntl\.all
+[ 	]+[0-9a-f]+:[ 	]+01b28723[ 	]+sb[ 	]+s11,14\(t0\)
diff --git a/gas/testsuite/gas/riscv/zihintntl.s b/gas/testsuite/gas/riscv/zihintntl.s
new file mode 100644
index 000000000000..6c100f70d92d
--- /dev/null
+++ b/gas/testsuite/gas/riscv/zihintntl.s
@@ -0,0 +1,32 @@
+.macro	INSN_SEQ
+	ntl.p1
+	sb	s11, 0(t0)
+	ntl.pall
+	sb	s11, 2(t0)
+	ntl.s1
+	sb	s11, 4(t0)
+	ntl.all
+	sb	s11, 6(t0)
+.endm
+
+.macro	INSN_SEQ_C
+	c.ntl.p1
+	sb	s11, 8(t0)
+	c.ntl.pall
+	sb	s11, 10(t0)
+	c.ntl.s1
+	sb	s11, 12(t0)
+	c.ntl.all
+	sb	s11, 14(t0)
+.endm
+
+target:
+	INSN_SEQ	# RV32I_Zihintntl
+
+	# 'Zcb' is chosen to test complex cases to enable
+	# compressed instructions.
+	.option	push
+	.option	arch, +zcb
+	INSN_SEQ	# RV32I_Zihintntl_Zca_Zcb (auto compression without prefix)
+	INSN_SEQ_C	# RV32I_Zihintntl_Zca_Zcb (with compressed prefix)
+	.option pop
diff --git a/include/opcode/riscv-opc.h b/include/opcode/riscv-opc.h
index 53f5f2005085..26d2c04bf241 100644
--- a/include/opcode/riscv-opc.h
+++ b/include/opcode/riscv-opc.h
@@ -2298,6 +2298,23 @@
 #define MASK_CZERO_EQZ 0xfe00707f
 #define MATCH_CZERO_NEZ 0xe007033
 #define MASK_CZERO_NEZ 0xfe00707f
+/* Zihintntl hint instructions.  */
+#define MATCH_NTL_P1 0x200033
+#define MASK_NTL_P1 0xffffffff
+#define MATCH_NTL_PALL 0x300033
+#define MASK_NTL_PALL 0xffffffff
+#define MATCH_NTL_S1 0x400033
+#define MASK_NTL_S1 0xffffffff
+#define MATCH_NTL_ALL 0x500033
+#define MASK_NTL_ALL 0xffffffff
+#define MATCH_C_NTL_P1 0x900a
+#define MASK_C_NTL_P1 0xffff
+#define MATCH_C_NTL_PALL 0x900e
+#define MASK_C_NTL_PALL 0xffff
+#define MATCH_C_NTL_S1 0x9012
+#define MASK_C_NTL_S1 0xffff
+#define MATCH_C_NTL_ALL 0x9016
+#define MASK_C_NTL_ALL 0xffff
 /* Zawrs intructions.  */
 #define MATCH_WRS_NTO 0x00d00073
 #define MASK_WRS_NTO 0xffffffff
@@ -3341,6 +3358,15 @@ DECLARE_INSN(cbo_zero, MATCH_CBO_ZERO, MASK_CBO_ZERO);
 /* Zicond instructions. */
 DECLARE_INSN(czero_eqz, MATCH_CZERO_EQZ, MASK_CZERO_EQZ)
 DECLARE_INSN(czero_nez, MATCH_CZERO_NEZ, MASK_CZERO_NEZ)
+/* Zihintntl hint instructions.  */
+DECLARE_INSN(ntl_p1, MATCH_NTL_P1, MASK_NTL_P1);
+DECLARE_INSN(ntl_pall, MATCH_NTL_PALL, MASK_NTL_PALL);
+DECLARE_INSN(ntl_s1, MATCH_NTL_S1, MASK_NTL_S1);
+DECLARE_INSN(ntl_all, MATCH_NTL_ALL, MASK_NTL_ALL);
+DECLARE_INSN(c_ntl_p1, MATCH_C_NTL_P1, MASK_C_NTL_P1);
+DECLARE_INSN(c_ntl_pall, MATCH_C_NTL_PALL, MASK_C_NTL_PALL);
+DECLARE_INSN(c_ntl_s1, MATCH_C_NTL_S1, MASK_C_NTL_S1);
+DECLARE_INSN(c_ntl_all, MATCH_C_NTL_ALL, MASK_C_NTL_ALL);
 /* Zawrs instructions.  */
 DECLARE_INSN(wrs_nto, MATCH_WRS_NTO, MASK_WRS_NTO)
 DECLARE_INSN(wrs_sto, MATCH_WRS_STO, MASK_WRS_STO)
diff --git a/include/opcode/riscv.h b/include/opcode/riscv.h
index 808f36573030..77586375632c 100644
--- a/include/opcode/riscv.h
+++ b/include/opcode/riscv.h
@@ -392,6 +392,8 @@ enum riscv_insn_class
   INSN_CLASS_ZICOND,
   INSN_CLASS_ZICSR,
   INSN_CLASS_ZIFENCEI,
+  INSN_CLASS_ZIHINTNTL,
+  INSN_CLASS_ZIHINTNTL_AND_C,
   INSN_CLASS_ZIHINTPAUSE,
   INSN_CLASS_ZMMUL,
   INSN_CLASS_ZAWRS,
diff --git a/opcodes/riscv-opc.c b/opcodes/riscv-opc.c
index 6a854736fec0..2dd2456a6348 100644
--- a/opcodes/riscv-opc.c
+++ b/opcodes/riscv-opc.c
@@ -337,6 +337,18 @@ const struct riscv_opcode riscv_opcodes[] =
 {"prefetch.i",  0, INSN_CLASS_ZICBOP, "Wif(s)", MATCH_PREFETCH_I, MASK_PREFETCH_I, match_opcode, 0 },
 {"prefetch.r",  0, INSN_CLASS_ZICBOP, "Wif(s)", MATCH_PREFETCH_R, MASK_PREFETCH_R, match_opcode, 0 },
 {"prefetch.w",  0, INSN_CLASS_ZICBOP, "Wif(s)", MATCH_PREFETCH_W, MASK_PREFETCH_W, match_opcode, 0 },
+{"ntl.p1",      0, INSN_CLASS_ZIHINTNTL_AND_C, "", MATCH_C_NTL_P1, MASK_C_NTL_P1, match_opcode, INSN_ALIAS },
+{"ntl.p1",      0, INSN_CLASS_ZIHINTNTL,       "", MATCH_NTL_P1, MASK_NTL_P1, match_opcode, 0 },
+{"ntl.pall",    0, INSN_CLASS_ZIHINTNTL_AND_C, "", MATCH_C_NTL_PALL, MASK_C_NTL_PALL, match_opcode, INSN_ALIAS },
+{"ntl.pall",    0, INSN_CLASS_ZIHINTNTL,       "", MATCH_NTL_PALL, MASK_NTL_PALL, match_opcode, 0 },
+{"ntl.s1",      0, INSN_CLASS_ZIHINTNTL_AND_C, "", MATCH_C_NTL_S1, MASK_C_NTL_S1, match_opcode, INSN_ALIAS },
+{"ntl.s1",      0, INSN_CLASS_ZIHINTNTL,       "", MATCH_NTL_S1, MASK_NTL_S1, match_opcode, 0 },
+{"ntl.all",     0, INSN_CLASS_ZIHINTNTL_AND_C, "", MATCH_C_NTL_ALL, MASK_C_NTL_ALL, match_opcode, INSN_ALIAS },
+{"ntl.all",     0, INSN_CLASS_ZIHINTNTL,       "", MATCH_NTL_ALL, MASK_NTL_ALL, match_opcode, 0 },
+{"c.ntl.p1",    0, INSN_CLASS_ZIHINTNTL_AND_C, "", MATCH_C_NTL_P1, MASK_C_NTL_P1, match_opcode, 0 },
+{"c.ntl.pall",  0, INSN_CLASS_ZIHINTNTL_AND_C, "", MATCH_C_NTL_PALL, MASK_C_NTL_PALL, match_opcode, 0 },
+{"c.ntl.s1",    0, INSN_CLASS_ZIHINTNTL_AND_C, "", MATCH_C_NTL_S1, MASK_C_NTL_S1, match_opcode, 0 },
+{"c.ntl.all",   0, INSN_CLASS_ZIHINTNTL_AND_C, "", MATCH_C_NTL_ALL, MASK_C_NTL_ALL, match_opcode, 0 },
 {"pause",       0, INSN_CLASS_ZIHINTPAUSE, "", MATCH_PAUSE, MASK_PAUSE, match_opcode, 0 },
 
 /* Basic RVI instructions and aliases.  */
