LONDON — Alan Jope has been named chief executive officer of Unilever P.L.C., effective Jan. 1. He will succeed Paul Polman, who is retiring after nearly 10 years as c.e.o. of the company.

Mr. Jope joined Unilever in 1985 and has been president of Beauty & Personal Care, Unilever’s largest division, since September 2014. Prior to being appointed president of Unilever’s Beauty & Personal Care business, Mr. Jope was president of Russia, Africa & Middle East. Earlier, he led Unilever’s business in Greater China and was named president of Unilever North Asia in 2011. During the early 2000s he was global category leader for several of Unilever’s food and refreshment divisions and was president of Unilever’s home and personal care business in North America.

“It will be a huge privilege to lead Unilever — a truly global company full of talented people and brilliant brands,” Mr. Jope said. “Over the 30 years I have worked at Unilever, I have seen the many ways in which our brands improve people’s lives, positively impacting more than 2 billion citizens every day.

“Our global footprint includes strong positions in many important markets for the future, and our focus will remain on serving our consumers, and our other multiple stakeholders, to deliver long-term growth and value creation.”

Mr. Polman will retire as c.e.o. and a board member on Dec. 31. He will support the transition process in the first half of 2019 and will leave the company in early July.

Mr. Polman has worked in the consumer goods industry for almost four decades, including the past 10 years as c.e.o. of Unilever. During his tenure, the company said Mr. Polman delivered consistent top- and bottom-line growth ahead of its markets.

“Paul is an exceptional business leader who has transformed Unilever, making it one of the best-performing companies in its sector, and one of the most admired businesses in the world,” said Marijn Dekkers, chairman of Unilever. “His role in helping to define a new era of responsible capitalism, embodied in the Unilever Sustainable Living Plan, marks him out as one of the most far-sighted business leaders of his generation.

“Paul’s vision, drive and performance focus, combined with his commitment to serving the best long-term interests of the company, have materially strengthened Unilever. He leaves a more agile and resilient company, well placed to win in this fast-changing, dynamic industry. I’d like to thank him personally, and on behalf of the board, for his contribution to Unilever.”