NEW YORK — Gail Tifford has been named chief brand officer of Weight Watchers International, Inc. In this role, she will lead execution of the company’s vision in both physical and digital environments, the company said. She also will join the executive committee.

Ms. Tifford joins Weight Watchers from Unilever P.L.C., where she was vice-president of media North America and global digital media innovation. At Unilever, she introduced a digital disruption roadmap to establish a global vision and strategy for digital media innovation across social commerce, augmented reality, A.I. and blockchain. Prior to Unilever, Ms. Tifford was vice-president of strategic partnerships at Viacom.

“Weight Watchers is an iconic brand with enviable equity — particularly on efficacy and community,” said Mindy Grossman, president and chief executive officer of Weight Watchers. “But there is also incredible opportunity to elevate the brand and make WW more meaningful to today’s world. Drawing on 20 years of proven brand-building experience, Gail will build on that heritage to develop the next evolution of the Weight Watchers brand that will inspire healthy habits that fit into everyday life. Her global mindset and successful track record with rolling out disruptive technologies in support of a greater brand purpose are tremendous assets as we look toward the future, when every consumer and employee touch-point around the world exudes our core brand promise.”