diff --git a/CHANGELOG.md b/CHANGELOG.md
index 490954554a1..1f09ead1fe3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@
 * **Cache**: Adds support for using out of proc caching in the backend [#10816](https://github.com/grafana/grafana/issues/10816)
 * **Dataproxy**: Make it possible to add user details to requests sent to the dataproxy [#6359](https://github.com/grafana/grafana/issues/6359) and [#15931](https://github.com/grafana/grafana/issues/15931)
 * **Auth**: Support listing and revoking auth tokens via API [#15836](https://github.com/grafana/grafana/issues/15836)
+* **Datasource**: Only log connection string in dev environment [#16001](https://github.com/grafana/grafana/issues/16001)
 
 ### Bug Fixes
 * **Api**: Invalid org invite code [#10506](https://github.com/grafana/grafana/issues/10506)
diff --git a/pkg/tsdb/mssql/mssql.go b/pkg/tsdb/mssql/mssql.go
index 12f2b6c03c9..c740d6cbe77 100644
--- a/pkg/tsdb/mssql/mssql.go
+++ b/pkg/tsdb/mssql/mssql.go
@@ -3,6 +3,7 @@ package mssql
 import (
 	"database/sql"
 	"fmt"
+	"github.com/grafana/grafana/pkg/setting"
 	"strconv"
 
 	_ "github.com/denisenkom/go-mssqldb"
@@ -24,7 +25,9 @@ func newMssqlQueryEndpoint(datasource *models.DataSource) (tsdb.TsdbQueryEndpoin
 	if err != nil {
 		return nil, err
 	}
-	logger.Debug("getEngine", "connection", cnnstr)
+	if setting.Env == setting.DEV {
+		logger.Debug("getEngine", "connection", cnnstr)
+	}
 
 	config := tsdb.SqlQueryEndpointConfiguration{
 		DriverName:        "mssql",
diff --git a/pkg/tsdb/mysql/mysql.go b/pkg/tsdb/mysql/mysql.go
index d307e12166c..0451f8f0dc1 100644
--- a/pkg/tsdb/mysql/mysql.go
+++ b/pkg/tsdb/mysql/mysql.go
@@ -3,6 +3,7 @@ package mysql
 import (
 	"database/sql"
 	"fmt"
+	"github.com/grafana/grafana/pkg/setting"
 	"reflect"
 	"strconv"
 	"strings"
@@ -44,7 +45,9 @@ func newMysqlQueryEndpoint(datasource *models.DataSource) (tsdb.TsdbQueryEndpoin
 		cnnstr += "&tls=" + tlsConfigString
 	}
 
-	logger.Debug("getEngine", "connection", cnnstr)
+	if setting.Env == setting.DEV {
+		logger.Debug("getEngine", "connection", cnnstr)
+	}
 
 	config := tsdb.SqlQueryEndpointConfiguration{
 		DriverName:        "mysql",
diff --git a/pkg/tsdb/postgres/postgres.go b/pkg/tsdb/postgres/postgres.go
index 4bcf06638f4..ae6b165e731 100644
--- a/pkg/tsdb/postgres/postgres.go
+++ b/pkg/tsdb/postgres/postgres.go
@@ -2,6 +2,7 @@ package postgres
 
 import (
 	"database/sql"
+	"github.com/grafana/grafana/pkg/setting"
 	"net/url"
 	"strconv"
 
@@ -19,7 +20,9 @@ func newPostgresQueryEndpoint(datasource *models.DataSource) (tsdb.TsdbQueryEndp
 	logger := log.New("tsdb.postgres")
 
 	cnnstr := generateConnectionString(datasource)
-	logger.Debug("getEngine", "connection", cnnstr)
+	if setting.Env == setting.DEV {
+		logger.Debug("getEngine", "connection", cnnstr)
+	}
 
 	config := tsdb.SqlQueryEndpointConfiguration{
 		DriverName:        "postgres",