Giovanni Battista was a common Italian given name (see Battista for those with the surname) in the 16th-18th centuries. It refers to "John the Baptist" in English, the French equivalent is "Jean-Baptiste". Common nicknames include Giambattista, Gianbattista, Giovambattista, or Giambo. In Genoese the nickname was Baciccio, and a common shortening was Giovan Battista, Giobatta or simply G.B.. The people listed below are Italian unless noted otherwise.

• Giovanni Battista Adriani (c.1511–1579), historian.
• Giovanni Battista Agnello (fl. 1560–1577), author and alchemist.
• Giovanni Battista Aleotti (1546–1636), architect.
• Giovanni Battista Amendola (1848–1887), sculptor.
• Giovanni Battista Amici (1786–1863), astronomer and microscopist.
• Giovanni Battista Angioletti (1896-1961), writer and journalist.
• Giovanni Battista Ballanti (1762–1835), sculptor.
• Giovanni Battista Barbiani (1593–1650), painter.
• Giovanni Battista Beccaria (1716–1781), physicist.
• Giovanni Battista Bellandi, sculptor.
• Giovanni Battista Belzoni (1778–1823), explorer.
• Giovanni Battista Bernero (1736–1796), sculptor.
• Giovanni Battista Brocchi (1772–1826), mineralogist and geologist.
• Giovanni Battista Bugatti (1780–1869), executioner.
• Giovanni Battista Buonamente (c.1595–1642), composer and violinist.
• Giovanni Battista Caccini, sculptor.
• Giovanni Battista Caporali (1476–1560), painter.
• Giovanni Battista Caprara (1733–1810), statesman and cardinal.
• Giovanni Battista Caracciolo (1578–1635), artist.
• Giovanni Battista Casanova, painter, brother of Giacomo Casanova.
• Giovanni Battista Castello, painter.
• Giovanni Battista Casti (1724–1803), poet and librettist.
• Giovanni Battista Cavalcaselle (1820–1897), writer and art critic.
• Giovanni Battista Cibo, birth name of Pope Innocent VIII (1432–1492).
• Giovanni Battista Cima (c.1459–c.1517), painter.
• Giovanni Battista Cimaroli (1653–1714), painter.
• Giovanni Battista Cini (1525–c.1586), playwright.
• Giovanni Battista Cipriani (1727–1785), painter and engraver.
• Giovanni Battista Cirri (1724–1808), cellist and composer.
• Giovanni Battista Crespi (1557–1663), painter, sculptor, and architect.
• Giovanni Battista de Campania (1633-1639), 64th Minister General of the OFM
• Giovanni Battista Dieter (1903–1955), German priest.
• Giovanni Battista Donati (1826–1873), astronomer.
• Giovanni Battista Doni (c.1593–1647), musicologist.
• Giovanni Battista Draghi (c.1640–1708), composer.
• Giovanni Battista Ferrandini (1710–1793), composer.
• Giovanni Battista Ferrari, botanist.
• Giovanni Battista Foggini (1652–1737), sculptor.
• Giovanni Battista Gaulli (1639–1709), painter.
• Giovanni Battista Giraldi (1504–1573), novelist and poet.
• Giovanni Battista Grassi (1854–1925), zoologist.
• Giovanni Battista Guadagnini (1711–1786), luthier.
• Giovanni Battista Guarini (1538–1612), poet and diplomat.
• Giovanni Battista Guelphi, 18th century sculptor
• Giovanni Battista Hodierna (1597–1660), astronomer.
• Giovanni Battista di Jacopo, birth name of Rosso Fiorentino (1494–1540), Italian painter.
• Giovanni Battista Lacchini (1884–1967), astronomer.
• Giovanni Battista Landolina, landowner and intellectual.
• Giovanni Battista Lenzi (1951–2009), Italian politician.
• Giovanni Battista Locatelli (disambiguation), several people
• Giovanni Battista Lulli, birth name of Jean-Baptiste Lully (1632–1687), Italian-born French composer.
• Giovanni Battista Lusieri (1755–1821), Italian painter who was involved in the removal of the Elgin Marbles.
• Giovanni Battista Maganza (1513–1586), painter.
• Giovanni Battista Maini (1690–1752), sculptor.
• Giovanni Battista Mancini (1714–1800), voice teacher.
• Giovanni Battista Martini (1706–1784), musician.
• Giovanni Battista Michelini (1604–1655), painter.
• Giovanni Battista Monte (1498-1551), humanist physician and professor at Padua.
• Giovanni Battista Monti, painter.
• Giovanni Battista Enrico Antonio Maria Montini, birth name of Pope Paul VI (1897–1978).
• Giovanni Battista Morgagni (1682–1771), anatomist.
• Giovanni Battista Moroni (1520–1578), painter.
• Giovanni Battista Orsenigo (1837–1904), monk and dentist.
• Giovanni Battista Orsini, Grand Master of the Order of the Knights Hospitaller from 1467 to 1476
• Giovanni Battista Paggi (1554–1627), painter.
• Giovanni Battista Pamphili, birth name of Pope Innocent X (1574–1655).
• Giovanni Battista Pergolesi (1710–1736), composer.
• Giovanni Battista Pescetti (c.1704–1766), composer and organist.
• Giovanni Battista Piazzetta (c.1683–1754), painter.
• Giovanni Battista Pioda (1808–1882), Swiss politician.
• Giovanni Battista Piranesi (1720–1778), artist.
• Giovanni Battista di Quadro, Polish-Italian architect.
• Giovanni Battista Re (1934–), cardinal.
• Giovanni Battista Riccioli (1598–1671), astronomer.
• Giovanni Battista Rinuccini (1592–1653), archbishop.
• Giovanni Battista de Rossi (1822–1894), archaeologist.
• Giovanni Battista Rubini (1794–1854), singer.
• Giovanni Battista Sammartini (c.1700–1775), composer and organist.
• Giovanni Battista Salvi da Sassoferrato (1609–1685), painter.
• Giovanni Battista Santini, architect.
• Giovanni Battista Sidotti (1668–1714), Jesuit priest and missionary.
• Giovanni Battista Tempesti, painter.
• Giovanni Battista Tiepolo (1696–1770), painter.
• Giovanni Battista Trevano, architect.
• Giovanni Battista Vaccarini (1702–1768), architect.
• Giovanni Battista Venturi (1746–1822), physicist.
• Giovanni Battista Viotti (1755–1824), violinist and composer.
• Giovanni Battista Vitali, composer.
• Giovanni Battista Volpati, (1633–1706), painter.
• Giovanni Battista Zupi (c.1590–1650), astronomer, mathematician, and Jesuit priest.