There isn’t a single objectively “best” bank in Sri Lanka — it depends on what matters most to you (size, safety, retail services, corporate banking, digital tools, Islamic/non‑interest banking, branch/network, or awards). That said, three banks are commonly cited as top choices for different reasons:

• Commercial Bank of Ceylon (ComBank) — widely recognised for overall performance, innovation and private‑sector leadership. It has repeatedly won “Best Bank in Sri Lanka” awards from outlets such as Global Finance and FinanceAsia and is the largest private‑sector bank by many commercial metrics (assets, deposits, lending market share). (ceylontoday.lk)

• Bank of Ceylon (BOC) — the largest bank by total assets and deposits (state‑owned), often considered the most systemically large and stable domestic bank; it reported group assets around LKR 5 trillion at end‑2024 and strong capital/liquidity metrics. Good if you prioritise scale, nationwide branch reach and government backing. (reportsar.boc.lk)

• Amãna Bank — Sri Lanka’s leading non‑interest (Islamic) bank and a rising contender in awards focused on asset quality and niche customer segments; it’s been recognised in regional banking awards for its model and growth. Good if you want Sharia‑compliant/non‑interest banking. (amanabank.lk)

How to pick the best for you

• If you want the bank with the most international awards and strong private‑sector products (cards, digital, SME lending): consider Commercial Bank (ComBank). (ceylontoday.lk)
• If you prioritise size, nationwide presence, or perceived sovereign support: consider Bank of Ceylon (BOC). (reportsar.boc.lk)
• If you need Islamic/non‑interest banking: consider Amãna Bank. (amanabank.lk)

If you tell me which features matter most to you (safety, remittances, online banking, loans, branch network, Islamic banking, business services), I can recommend the single best match and point to recent product/pricing details and branch/online options.