Nicholas Guy Halsey TD, DL, FRICS (born 14 June 1948) is the heir to the Halsey Baronetcy. Halsey is the son of Lieutenant Colonel Guy Marsden Halsey, TD (1908–1990), the second son of the Reverend Frederick Halsey and Audrey Katherine, née Marsden. Halsey is the Lord of the Manor for Hemel Hempstead and owner of the Gaddesden Estate, and as such is patron of the Church of St John the Baptist, Great Gaddesden. Halsey also served as President of the Royal Forestry Society 2011–2015.