a Commander ranks below a Knight. However, Knights of the Venerable Order of St John are not entitled to the style of Sir.

The orders, from highest to lowest, that award the rank of Knight and Dame Commander, and related post-nominal letters, are (dormant orders are in italics):
* Order of the Bath (KCB/DCB)
* Order of the Star of India (KCSI)
* Order of St Michael and St George