Short answer: there’s no single objectively “best” bank — it depends on what you need (biggest branch network, strongest capital, best digital apps, cheapest accounts, cross‑border services, SME lending, etc.). That said, based on awards, market‑size and published 2024–2025 results, these lenders are widely seen as the top choices in Sri Lanka today:

• Commercial Bank of Ceylon — the most‑frequently awarded “Best Bank in Sri Lanka” by international publications and the largest private‑sector bank by assets; strong digital offering and wide international footprint. (combank.lk, combank2024.annualreports.lk)
• Bank of Ceylon (BOC) — the largest state‑owned bank with the biggest branch/remittance network and recognition in The Banker / Top 1000 lists; good for nationwide access and government‑linked services. (boc.lk)
• Hatton National Bank (HNB) — a leading private bank with strong retail finance, SME focus and multiple industry awards for retail/SME banking. (hnb.net)
• Sampath Bank — consistently recognized for performance and innovation (digital and sustainability reporting). (sampath.lk, businesscafe.lk)

Which is “best” for you (concise guidance)

• If you want the most international reach, market awards and strong private‑sector stability → Commercial Bank. (combank.lk, combank2024.annualreports.lk)
• If you need the largest branch network, government‑backed services or remittance coverage across Sri Lanka → Bank of Ceylon. (boc.lk)
• If your priority is retail products, auto/consumer finance or SME lending with many local awards → HNB or Sampath. (hnb.net, businesscafe.lk)

If you want, tell me which features matter most to you (branches, online/mobile banking, international transfers, loans, interest rates, fees, safety) and I’ll recommend the single best fit and point you to account/product comparisons and the latest rates.