No, ISA accounts can only be held in GBP.
According to HMRC regulations, it is not permissible to hold an ISA account in any currency other than GBP. This means that if the base currency of a stock is not in sterling (GBP), a currency conversion must occur at the time of the trade. At Saxo, we offer a market-leading conversion rate, ensuring competitive and efficient currency conversions for your investments. Click here and go down to Currency conversion rates to see our latest fee's