|Service branch||Royal Navy|
|Next higher rank||Surgeon Commander|
|Next lower rank||Surgeon Lieutenant|
Surgeon Lieutenant-Commander is a flag rank of the Royal Navy's Medical Branch established in 1958. It replaced the earlier rank of Staff Surgeon (1875-1918). It is the seventh highest rank available an officer can attain to in the Royal Naval Medical Service. It ranks below Surgeon Commander and above Surgeon Lieutenant. It is equivalent to a Lieutenant-Commander of the navy's Executive Branch.