Q: Can I create a Read Replica of another Read Replica? Amazon RDS for MySQL and MariaDB. You can create a second-tier Read Replica from an existing first-tier Read Replica. By creating a second-tier Read Replica, you may be able to move some of the replication load from the master database instance to a first-tier Read Replica. Please note that a second-tier Read Replica may lag further behind the master because of additional replication latencyintroduced as transactions are replicated from the master to the first tier replica and then to the second-tier replica. Amazon RDS for PostgreSQL: Read Replicas of Read Replicas are not currently supported. https://aws.amazon.com/rds/faqs/