Rosa Mary Barrett (1855–1936) was an English-born Irish social reformer, educationalist and suffragist; her brother was the physicist William F. Barrett.
Barrett moved to Monkstown, Co. Dublin and then to Kingstown (now Dún Laoghaire), Co. Dublin, in Ireland.
In 1879 she helped set up a committee for the establishment of a care facility for children, effectively a creche allowing women to enter the workforce.
[1] To avoid accusations of proselytising, the home did not accept Catholic children.
Rosa Barrett founded the Irish section of the National Society for the Prevention of Cruelty to Children in 1889.