Nine ships of the Royal Navy have borne the name HMS Investigator. Another was planned, but renamed before being launched. The name Investigator passed on to the Royal Indian Navy and after India's Independence, to its successor the Indian Navy where the lineage of naming survey ships Investigator continues unbroken.

See also

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  • HMS Trent was renamed Investigator in 1951 after being converted to a survey ship for the Indian Navy.
  • INS Investigator currently in service with the Indian Navy continues this lineage.
  • RV Investigator, Australian research vessel built in 2013