Geldolph Adriaan "Dolf" Kessler was a Dutch footballer and industrialist. Kessler – along with brother Boeli and cousins Tonny and Dé – played club football for amateur side HVV Den Haag. Kessler also won three caps for the Dutch national side between 1905 and 1906.

Jean Baptiste August Kessler was a Dutch entrepreneur and oil explorer who was largely responsible for the growth and development of the Royal Dutch Petroleum Co., now part of present-day Shell.