diff --git a/changelog.d/5020.feature b/changelog.d/5020.feature
new file mode 100644
index 000000000..71f7a8db2
--- /dev/null
+++ b/changelog.d/5020.feature
@@ -0,0 +1 @@
+Add context to phonehome stats.
diff --git a/docs/sample_config.yaml b/docs/sample_config.yaml
index f6b3fac6c..a380b5f9a 100644
--- a/docs/sample_config.yaml
+++ b/docs/sample_config.yaml
@@ -236,6 +236,9 @@ listeners:
 #  - medium: 'email'
 #    address: 'reserved_user@example.com'
 
+# Used by phonehome stats to group together related servers.
+#server_context: context
+
 
 ## TLS ##
 
diff --git a/synapse/app/homeserver.py b/synapse/app/homeserver.py
index 869c028d1..79be977ea 100755
--- a/synapse/app/homeserver.py
+++ b/synapse/app/homeserver.py
@@ -518,6 +518,7 @@ def run(hs):
             uptime = 0
 
         stats["homeserver"] = hs.config.server_name
+        stats["server_context"] = hs.config.server_context
         stats["timestamp"] = now
         stats["uptime_seconds"] = uptime
         version = sys.version_info
@@ -558,7 +559,6 @@ def run(hs):
 
         stats["database_engine"] = hs.get_datastore().database_engine_name
         stats["database_server_version"] = hs.get_datastore().get_server_version()
-
         logger.info("Reporting stats to matrix.org: %s" % (stats,))
         try:
             yield hs.get_simple_http_client().put_json(
diff --git a/synapse/config/server.py b/synapse/config/server.py
index 08e4e4548..c5e5679d5 100644
--- a/synapse/config/server.py
+++ b/synapse/config/server.py
@@ -37,6 +37,7 @@ class ServerConfig(Config):
 
     def read_config(self, config):
         self.server_name = config["server_name"]
+        self.server_context = config.get("server_context", None)
 
         try:
             parse_and_validate_server_name(self.server_name)
@@ -484,6 +485,9 @@ class ServerConfig(Config):
         #mau_limit_reserved_threepids:
         #  - medium: 'email'
         #    address: 'reserved_user@example.com'
+
+        # Used by phonehome stats to group together related servers.
+        #server_context: context
         """ % locals()
 
     def read_arguments(self, args):