380 Fiducia (prov. designation: A894 AB or 1894 AR) is a dark and large asteroid, approximately 68 kilometers (42 miles) in diameter, located in the central region of the asteroid belt. It was discovered by French astronomer Auguste Charlois at the Nice Observatory on 8 January 1894. The carbonaceous C-type asteroid has a rotation period of 13.7 hours. It was named "Fiducia", the Latin word for confidence.