Mahoras Brook is an approximately 3.5 miles (5.6 km) long spring-fed tributary of Waackaack Creek that flows through Monmouth County, New Jersey. It rises in a small glen shortly west of Middletown, at (40°25′12″N74°08′13″W) and makes a bend north, flowing through the northwest section of Tatum Park. The creek flows under Holland Road and runs north in a small, forested swale through a dominantly residential area, roughly paralleling Laurel Avenue (County Route 52), and receives a small tributary on the left bank.