diff --git a/ansible/roles/loadbalancer/defaults/main.yml b/ansible/roles/loadbalancer/defaults/main.yml
index ddc8c604debba8a08a25f89d07dffd0c0b9f0c06..7db023e017c1c9b7f0f39c593f2e45b30c0e40c2 100644
--- a/ansible/roles/loadbalancer/defaults/main.yml
+++ b/ansible/roles/loadbalancer/defaults/main.yml
@@ -51,6 +51,8 @@ keepalived_traffic_mode: "multicast"
 
 # Extended global configuration, optimization options.
 haproxy_max_connections: 40000
+haproxy_threads: 1
+# More than 1 process is deprecated by HAProxy, prefer haproxy_threads
 haproxy_processes: 1
 haproxy_process_cpu_map: "no"
 # Matches the mariadb 10000 max connections limit
diff --git a/ansible/roles/loadbalancer/templates/haproxy/haproxy_main.cfg.j2 b/ansible/roles/loadbalancer/templates/haproxy/haproxy_main.cfg.j2
index 5e4ad2c673919feed0403494c11b21592da4cbe4..39a6ceed516a88f1194b35dc0a06333064073d90 100644
--- a/ansible/roles/loadbalancer/templates/haproxy/haproxy_main.cfg.j2
+++ b/ansible/roles/loadbalancer/templates/haproxy/haproxy_main.cfg.j2
@@ -7,6 +7,7 @@ global
     log {{ syslog_server }}:{{ syslog_udp_port }} {{ syslog_haproxy_facility }}
     maxconn {{ haproxy_max_connections }}
     nbproc {{ haproxy_processes }}
+    nbthread {{ haproxy_threads }}
     {% if (haproxy_processes | int > 1) and (haproxy_process_cpu_map | bool) %}
         {% for cpu_idx in range(0, haproxy_processes) %}
     cpu-map {{ cpu_idx + 1 }} {{ cpu_idx }}
diff --git a/releasenotes/notes/haproxy-nbthread-7680f1be54eeb365.yaml b/releasenotes/notes/haproxy-nbthread-7680f1be54eeb365.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..c71dd7e2e2c4f7ff1299574e7ae88ca9fcfebe81
--- /dev/null
+++ b/releasenotes/notes/haproxy-nbthread-7680f1be54eeb365.yaml
@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    HAProxy supports setting nbthread via variable haproxy_threads.
+    Threads are recommended instead of processes since HAProxy 1.8.
+    They cannot be used both at the same time.