Cautethia grotei, or Grote's sphinx, is a moth of the family Sphingidae.

It resides in the US state of Florida and the islands of the Caribbean.

There are multiple generations per year in Florida.

Adults nectar at various flowers, including Asystasia gangetica and Dracaena fragrans.

Larvae have been recorded feeding on various Rubiaceae species, including milkberry (Chiococca alba), black torch (Erithalis fruticosa) and common snowberry (Symphoricarpos albus).