Maneckji is a given name. Notable people with the name include:
Maneckji Byramji Dadabhoy, KCSI, KCIE (1865–1953), Indian lawyer, industrialist, and political figure Maneckji Nusserwanji Dhalla (1875–1956), Pakistani Zoroastrian priest and religious scholar Maneckji Limji Hataria (1813–1890), Indian scholar and civil rights activist of Parsi Zoroastrian descent Dinshaw Maneckji Petit (1823–1901), Indian industrialist and philanthropist Hormasji Maneckji Seervai (1906–1996), Indian jurist, lawyer and writer
See also Maneckji Seth Agiary, a Zoroastrian fire temple in Mumbai, India, constructed in 1735