Otto Hoynck (1630, The Hague - after 1706), was a Dutch Golden Age portrait painter active in England.
According to the RKD he was trained in The Hague as a pupil of Arnold van Ravesteyn and Pieter Hermansz Verelst (Verelst became his father-in-law).[1] He moved to England after being registered in Amsterdam in 1686.[1] Jacob Campo Weyerman listed him as Otto Hoijink.[2]