Murray will be based in New York and lead the 9,000-strong agency with a brief to raise the quality of creative work, develop client relationships and bring in new global accounts.
He was most recently president and chief executive of Y&R North America and chief executive of Y&R New York. His previous roles include chief marketing officer and worldwide account director for Nestlé.
After beginning his career at Leo Burnett in Chicago, Murray spent time at the Publicis Groupe-owned network’s German and British offices.
Michael Roth, chairman and chief executive of IPG, said Murray "understands consumer advertising and brands" and his combination of "skills and experience" was what the agency needed to evolve its integrated model and drive growth.
Roth said Murray had demonstrated his ability to motivate teams, raise creative quality, nurture client relationships and win global business.
Boschetto will stay at the agency during the transition and will then become a consultant senior adviser to IPG.