Do you mean in the U.S. and by sales/popularity overall or in a specific category (refrigerated, shelf‑stable/aseptic, orange juice)?

Short answer (U.S., by retail sales in 2025): it depends on the category —

• Leading refrigerated bottled juice brand by sales: Naked Juice. (Statista.com)
• Leading refrigerated orange‑juice brand by sales: Tropicana. (Statista.com)
• Leading shelf‑stable/aseptic juice brand by sales: Capri‑Sun (pouches). (Statista.com)

Context: Statista’s 2025 market data breaks the juice market into segments (refrigerated, aseptic, orange juice, etc.), and different brands lead different segments. For a single overall “most popular” brand you want (for example) highest total U.S. retail sales, I can pull the latest ranked sales figures and market‑share numbers and cite them — tell me whether you want overall, just bottled (not pouches), or by juice type.