Jacq is a surname.
Angèle Jacq (1937–2021), Breton writer Christian Jacq (born 1947), French author and Egyptologist Éliane Jacq (1948–2011), French athlete Grégoire Jacq (born 1992), French tennis player Marie Jacq (1919–2014), French politician Peter Le Jacq (born 1954), Maryknoll priest
See also Jacq van den Berg (1916–?), Netherlands Olympic sailor Jacq Firmin Vogelaar Jacq., taxonomic author abbreviation of Nikolaus Joseph von Jacquin(1727–1817), Dutch-born scientist J.Jacq., taxonomic author abbreviation of Joseph Franz von Jacquin (1766–1839), Austrian scientist Jack (surname) Jacque, given name and surname Jacques, given name and surname