This is a protocol for a Cochrane Review (Intervention). The objectives are as follows:

(1) To identify and describe workplace interventions designed to encourage, assist and support breastfeeding for women returning to work after the birth of their child.
(2) To assess the effectiveness of workplace interventions in assisting with the initiation, continuation, duration and exclusiveness of breastfeeding.
(3) To evaluate the impact of workplace interventions on process outcomes pertinent to employees and employers.