This special issue of Maternal and Child Nutrition includes the invited papers from presentations made during a global meeting in Mumbai, India, on the theme: First Foods: A Global Meeting to Accelerate Progress on Complementary Feeding for Young Children (November 17–18, 2015). The Conference provided a platform that aimed to (a) synthesize the biological and implementation science on complementary feeding; (b) review the practice and experience in improving access to nutritious complementary foods and good complementary feeding practices in children aged 6–23 months; and (c) consolidate a strong evidence base that can inform the development of strategies and approaches to improve complementary feeding that are fit to context. The papers in this special issue provide the most up to date thinking on a variety of topics related to young child feeding discussed at the 2015 meeting.