diff --git a/unix/linux/types.go b/unix/linux/types.go
index 31a20c7..b1daba7 100644
--- a/unix/linux/types.go
+++ b/unix/linux/types.go
@@ -257,6 +257,16 @@
 #endif
 };
 
+// copied from /usr/include/netiucv/iucv.h modified with explicit signed chars.
+struct sockaddr_iucv {
+	sa_family_t siucv_family;
+	unsigned short siucv_port;
+	unsigned int siucv_addr;
+	signed char siucv_nodeid[8];
+	signed char siucv_user_id[8];
+	signed char siucv_name[8];
+};
+
 #ifdef __ARM_EABI__
 typedef struct user_regs PtraceRegs;
 #elif defined(__aarch64__)
@@ -540,6 +550,8 @@
 
 type RawSockaddrL2TPIP6 C.struct_sockaddr_l2tpip6
 
+type RawSockaddrIUCV C.struct_sockaddr_iucv
+
 type RawSockaddr C.struct_sockaddr
 
 type RawSockaddrAny C.struct_sockaddr_any
@@ -594,6 +606,7 @@
 	SizeofSockaddrTIPC      = C.sizeof_struct_sockaddr_tipc
 	SizeofSockaddrL2TPIP    = C.sizeof_struct_sockaddr_l2tpip
 	SizeofSockaddrL2TPIP6   = C.sizeof_struct_sockaddr_l2tpip6
+	SizeofSockaddrIUCV      = C.sizeof_struct_sockaddr_iucv
 	SizeofLinger            = C.sizeof_struct_linger
 	SizeofIovec             = C.sizeof_struct_iovec
 	SizeofIPMreq            = C.sizeof_struct_ip_mreq
diff --git a/unix/syscall_internal_linux_test.go b/unix/syscall_internal_linux_test.go
index af48c2a..a690b99 100644
--- a/unix/syscall_internal_linux_test.go
+++ b/unix/syscall_internal_linux_test.go
@@ -157,6 +157,18 @@
 			},
 		},
 		{
+			name: "AF_IUCV",
+			rsa: sockaddrIUCVToAny(RawSockaddrIUCV{
+				Family:  AF_IUCV,
+				User_id: [8]int8{'*', 'M', 'S', 'G', ' ', ' ', ' ', ' '},
+				Name:    [8]int8{' ', ' ', ' ', ' ', ' ', ' ', ' ', ' '},
+			}),
+			sa: &SockaddrIUCV{
+				UserID: "*MSG    ",
+				Name:   "        ",
+			},
+		},
+		{
 			name: "AF_MAX EAFNOSUPPORT",
 			rsa: &RawSockaddrAny{
 				Addr: RawSockaddr{
@@ -505,3 +517,12 @@
 
 	return &out
 }
+
+func sockaddrIUCVToAny(in RawSockaddrIUCV) *RawSockaddrAny {
+	var out RawSockaddrAny
+	copy(
+		(*(*[SizeofSockaddrAny]byte)(unsafe.Pointer(&out)))[:],
+		(*(*[SizeofSockaddrUnix]byte)(unsafe.Pointer(&in)))[:],
+	)
+	return &out
+}
diff --git a/unix/syscall_linux.go b/unix/syscall_linux.go
index 027bcaf..e12f9ba 100644
--- a/unix/syscall_linux.go
+++ b/unix/syscall_linux.go
@@ -885,6 +885,32 @@
 	return unsafe.Pointer(&sa.raw), SizeofSockaddrL2TPIP6, nil
 }
 
+// SockaddrIUCV implements the Sockaddr interface for AF_IUCV sockets.
+type SockaddrIUCV struct {
+	UserID string
+	Name   string
+	raw    RawSockaddrIUCV
+}
+
+func (sa *SockaddrIUCV) sockaddr() (unsafe.Pointer, _Socklen, error) {
+	sa.raw.Family = AF_IUCV
+	// These are EBCDIC encoded by the kernel, but we still need to pad them
+	// with blanks. Initializing with blanks allows the caller to feed in either
+	// a padded or an unpadded string.
+	for i := 0; i < 8; i++ {
+		sa.raw.Nodeid[i] = ' '
+		sa.raw.User_id[i] = ' '
+		sa.raw.Name[i] = ' '
+	}
+	for i, b := range []byte(sa.UserID[:8]) {
+		sa.raw.User_id[i] = int8(b)
+	}
+	for i, b := range []byte(sa.Name[:8]) {
+		sa.raw.Name[i] = int8(b)
+	}
+	return unsafe.Pointer(&sa.raw), SizeofSockaddrIUCV, nil
+}
+
 func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
 	switch rsa.Addr.Family {
 	case AF_NETLINK:
@@ -1065,6 +1091,23 @@
 		}
 
 		return sa, nil
+	case AF_IUCV:
+		pp := (*RawSockaddrIUCV)(unsafe.Pointer(rsa))
+
+		var user [8]byte
+		var name [8]byte
+
+		for i := 0; i < 8; i++ {
+			user[i] = byte(pp.User_id[i])
+			name[i] = byte(pp.Name[i])
+		}
+
+		sa := &SockaddrIUCV{
+			UserID: string(user[:]),
+			Name:   string(name[:]),
+		}
+		return sa, nil
+
 	}
 	return nil, EAFNOSUPPORT
 }
diff --git a/unix/ztypes_linux.go b/unix/ztypes_linux.go
index 83364d7..77449a9 100644
--- a/unix/ztypes_linux.go
+++ b/unix/ztypes_linux.go
@@ -310,6 +310,15 @@
 	Conn_id  uint32
 }
 
+type RawSockaddrIUCV struct {
+	Family  uint16
+	Port    uint16
+	Addr    uint32
+	Nodeid  [8]int8
+	User_id [8]int8
+	Name    [8]int8
+}
+
 type _Socklen uint32
 
 type Linger struct {
@@ -422,6 +431,7 @@
 	SizeofSockaddrTIPC      = 0x10
 	SizeofSockaddrL2TPIP    = 0x10
 	SizeofSockaddrL2TPIP6   = 0x20
+	SizeofSockaddrIUCV      = 0x20
 	SizeofLinger            = 0x8
 	SizeofIPMreq            = 0x8
 	SizeofIPMreqn           = 0xc