OneSpaWorld Holdings Limited (OSW) is a global operator of health and wellness facilities, primarily situated aboard cruise ships and within premium destination resorts worldwide. These integrated centers provide a comprehensive suite of services, encompassing traditional spa therapies – including body, salon, and skin care treatments, along with associated retail products. For fitness enthusiasts, offerings range from self-service gym access and specialized group classes to personalized training sessions.

The company further extends its offerings to include therapeutic and lifestyle programs like pain management, detoxifying regimens, body composition analyses, and tailored weight management programs, complemented by relevant products.

Additionally, it provides advanced medi-spa services. OneSpaWorld also features popular beauty and wellness brands such as ELEMIS, Kérastase, and Dysport, noting that some of these are offered exclusively within its cruise ship operations. By December 31, 2021, OneSpaWorld's extensive network included operations on 170 cruise ships and at 52 destination resorts, delivering a broad spectrum of health, wellness, fitness, and beauty services, treatments, and products.

The company is headquartered in Nassau, Bahamas.