What is "custance"

Custance is an English surname. Notable people with this name include:

• A. I. Custance, pseudonym of Aleen Isobel Cust (1868–1937), pioneering female veterinary surgeon
• John D. Custance (1842–1923), agricultural scientist in South Australia
• Olive Custance (1874–1944), British poet and wife of Lord Alfred Douglas
• Wilfred Custance (1884–1939), senior officer in the Royal Navy