diff --git a/easybuild/easyconfigs/u/UCC/UCC-1.2.0-GCCcore-13.2.0.eb b/easybuild/easyconfigs/u/UCC/UCC-1.2.0-GCCcore-13.2.0.eb
index 45727a0c4bc..2c50c82b7d8 100644
--- a/easybuild/easyconfigs/u/UCC/UCC-1.2.0-GCCcore-13.2.0.eb
+++ b/easybuild/easyconfigs/u/UCC/UCC-1.2.0-GCCcore-13.2.0.eb
@@ -20,6 +20,11 @@ checksums = [
     {'UCC-1.1.0-multiple_component_paths.patch': '3081d0f694331daa4a88a0fa3fb54b9a918015248ae5eb7b3157b924abd31bee'},
 ]
 
+if ARCH == "riscv64":
+    patches += ['UCC-1.2.0_add-riscv-support.patch']
+    checksums += [{'UCC-1.2.0_add-riscv-support.patch':
+                   'e9e2a4c206dad2367af97d92c12b796b454992cfce23984b132e9e78a07ff55b'}]
+
 builddependencies = [
     ('binutils', '2.40'),
     ('Autotools', '20220317'),
diff --git a/easybuild/easyconfigs/u/UCC/UCC-1.2.0_add-riscv-support.patch b/easybuild/easyconfigs/u/UCC/UCC-1.2.0_add-riscv-support.patch
new file mode 100644
index 00000000000..1aa1e5fa331
--- /dev/null
+++ b/easybuild/easyconfigs/u/UCC/UCC-1.2.0_add-riscv-support.patch
@@ -0,0 +1,91 @@
+Add RISC-V support to UCC 1.2.0 using https://github.com/openucx/ucc/pull/829.
+
+diff --git a/src/Makefile.am b/src/Makefile.am
+index b3fe5ed1c2..85496f83dd 100644
+--- a/src/Makefile.am
++++ b/src/Makefile.am
+@@ -50,6 +50,7 @@ noinst_HEADERS =                      \
+ 	coll_score/ucc_coll_score.h       \
+ 	utils/arch/aarch64/cpu.h          \
+ 	utils/arch/ppc64/cpu.h            \
++	utils/arch/riscv64/cpu.h          \
+ 	utils/arch/x86_64/cpu.h           \
+ 	utils/arch/cpu.h                  \
+ 	utils/arch/cuda_def.h             \
+diff --git a/src/utils/arch/cpu.h b/src/utils/arch/cpu.h
+index 8025f7a9d8..17a74195b7 100644
+--- a/src/utils/arch/cpu.h
++++ b/src/utils/arch/cpu.h
+@@ -2,6 +2,7 @@
+ * Copyright (c) NVIDIA CORPORATION & AFFILIATES, 2001-2023. ALL RIGHTS RESERVED.
+ * Copyright (C) ARM Ltd. 2016.  ALL RIGHTS RESERVED.
+ * Copyright (C) Shanghai Zhaoxin Semiconductor Co., Ltd. 2020. ALL RIGHTS RESERVED.
++* Copyright (C) Rivos Inc. 2023
+ *
+ * See file LICENSE for terms.
+ */
+@@ -44,6 +45,7 @@ typedef enum ucc_cpu_vendor {
+     UCC_CPU_VENDOR_AMD,
+     UCC_CPU_VENDOR_GENERIC_ARM,
+     UCC_CPU_VENDOR_GENERIC_PPC,
++    UCC_CPU_VENDOR_GENERIC_RISCV,
+     UCC_CPU_VENDOR_FUJITSU_ARM,
+     UCC_CPU_VENDOR_ZHAOXIN,
+     UCC_CPU_VENDOR_LAST
+@@ -59,6 +61,8 @@ static inline ucc_cpu_vendor_t ucc_get_vendor_from_str(const char *v_name)
+         return UCC_CPU_VENDOR_GENERIC_ARM;
+     if (strcasecmp(v_name, "ppc") == 0)
+         return UCC_CPU_VENDOR_GENERIC_PPC;
++    if (strcasecmp(v_name, "riscv") == 0)
++        return UCC_CPU_VENDOR_GENERIC_RISCV;
+     if (strcasecmp(v_name, "fujitsu") == 0)
+         return UCC_CPU_VENDOR_FUJITSU_ARM;
+     if (strcasecmp(v_name, "zhaoxin") == 0)
+@@ -107,6 +111,8 @@ static inline ucc_cpu_model_t ucc_get_model_from_str(const char *m_name)
+ #  include "ppc64/cpu.h"
+ #elif defined(__aarch64__)
+ #  include "aarch64/cpu.h"
++#elif defined(__riscv) && (__riscv_xlen == 64)
++#  include "riscv64/cpu.h"
+ #else
+ #  error "Unsupported architecture"
+ #endif
+diff --git a/src/utils/arch/riscv64/cpu.h b/src/utils/arch/riscv64/cpu.h
+new file mode 100644
+index 0000000000..c93cdb3db1
+--- /dev/null
++++ b/src/utils/arch/riscv64/cpu.h
+@@ -0,0 +1,33 @@
++/**
++* Copyright (c) 2001-2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
++* Copyright (C) ARM Ltd. 2016-2017.  ALL RIGHTS RESERVED.
++* Copyright (C) Rivos Inc. 2023
++*
++* See file LICENSE for terms.
++*/
++
++#ifndef UCC_UTILS_ARCH_RISCV64_CPU_H_
++#define UCC_UTILS_ARCH_RISCV64_CPU_H_
++
++#define UCC_ARCH_CACHE_LINE_SIZE 64
++
++/* RVWMO rules */
++#define ucc_memory_bus_fence()       asm volatile("fence iorw, iorw" ::: "memory")
++#define ucc_memory_bus_store_fence() asm volatile("fence ow, ow" ::: "memory")
++#define ucc_memory_bus_load_fence()  asm volatile("fence ir, ir" ::: "memory")
++
++#define ucc_memory_cpu_fence()       asm volatile("fence rw, rw" ::: "memory")
++#define ucc_memory_cpu_store_fence() asm volatile("fence rw, w" ::: "memory")
++#define ucc_memory_cpu_load_fence()  asm volatile("fence r, rw" ::: "memory")
++
++static inline ucc_cpu_model_t ucc_arch_get_cpu_model()
++{
++    return UCC_CPU_MODEL_UNKNOWN;
++}
++
++static inline ucc_cpu_vendor_t ucc_arch_get_cpu_vendor()
++{
++    return UCC_CPU_VENDOR_GENERIC_RISCV;
++}
++
++#endif