Yes, virtually every cabin on a modern cruise ship includes a private, "en-suite" bathroom. Regardless of whether you book an interior "windowless" room or a sprawling multi-bedroom suite, you will have your own toilet, sink, and shower. This has been the industry standard for decades, mirroring the expectations of modern hotels. In standard cabins, these bathrooms are famously compact ("cruise-sized") to maximize living space, often featuring clever storage solutions. Higher-tier suites may offer "split-bath" designs—common on Disney Cruise Line—where the toilet and a sink are in one room while the shower and a second sink are in another. While public restrooms are plentiful near pools and dining areas, you will never have to share a bathroom with strangers on a mainstream commercial cruise ship in 2026.