diff --git a/ansible/roles/haproxy/defaults/main.yml b/ansible/roles/haproxy/defaults/main.yml
index ffd50e0e14..fc5ad900eb 100644
--- a/ansible/roles/haproxy/defaults/main.yml
+++ b/ansible/roles/haproxy/defaults/main.yml
@@ -38,9 +38,11 @@ syslog_haproxy_facility: "local1"
 keepalived_traffic_mode: "multicast"
 
 # Extended global configuration, optimization options.
-haproxy_max_connections: 4000
+haproxy_max_connections: 40000
 haproxy_processes: 1
 haproxy_process_cpu_map: "no"
+# Matches the mariadb 10000 max connections limit
+haproxy_defaults_max_connections: 10000
 
 haproxy_dimensions: "{{ default_container_dimensions }}"
 keepalived_dimensions: "{{ default_container_dimensions }}"
diff --git a/ansible/roles/haproxy/templates/haproxy_main.cfg.j2 b/ansible/roles/haproxy/templates/haproxy_main.cfg.j2
index 34f2c453a6..cdc242986f 100644
--- a/ansible/roles/haproxy/templates/haproxy_main.cfg.j2
+++ b/ansible/roles/haproxy/templates/haproxy_main.cfg.j2
@@ -30,6 +30,7 @@ defaults
     timeout server {{ haproxy_server_timeout }}
     timeout check {{ haproxy_check_timeout }}
     balance {{ haproxy_defaults_balance }}
+    maxconn {{ haproxy_defaults_max_connections }}
 
 listen stats
    bind {{ api_interface_address }}:{{ haproxy_stats_port }}
diff --git a/releasenotes/notes/increase-haproxy-max-connections-df6aff5c82fdef24.yaml b/releasenotes/notes/increase-haproxy-max-connections-df6aff5c82fdef24.yaml
new file mode 100644
index 0000000000..44f521991f
--- /dev/null
+++ b/releasenotes/notes/increase-haproxy-max-connections-df6aff5c82fdef24.yaml
@@ -0,0 +1,9 @@
+---
+upgrade:
+  - |
+    The default connection limit for HAProxy backends is 2000 however, MariaDB
+    defaults to a max of 10000 conections. This has been changed to match the
+    MariaDB limit.
+
+    'haproxy_max_connections' has also been increased to 40000 to accommodate
+    this.