Alpha variant and B1.1.318 also detected locally
Three cases of the Delta variant of coronavirus have been recorded on the Isle of Man since the start of May.
Government figures show genomic sequencing has confirmed the presence of the strain, which is currently the most common in the UK.
There have also been three cases of the Alpha, or Kent, variant, as well as one case of the unnamed B1.1.318 variant of interest.
There are currently 11 active cases of Covid-19 on the Isle of Man.