Here are the top commercial banks operating in Sri Lanka (ranked roughly by size / market share). Figures and rankings below are based on publicly available 2024–mid‑2025 financial reports and industry sources — if you need a strict ranking by a single metric (e.g., total assets, deposits or market cap) I can produce that with exact numbers and sources.

Top commercial banks in Sri Lanka (summary)

• Bank of Ceylon (BOC) — the largest bank in Sri Lanka by total assets (state‑owned). (BOC 2024 annual report). (reportsar.boc.lk)
• People’s Bank — one of the two largest state banks and among the top by assets and deposits (2024 results / 1H‑2025 updates). (dailynews.lk)
• Commercial Bank of Ceylon PLC — the largest private‑sector bank and designated a higher‑tier D‑SIB; among the top three banks overall. (combank2024.annualreports.lk)
• Hatton National Bank (HNB) — major private bank with large asset base and national branch network. (hnb.net)
• Sampath Bank — large private commercial bank (significant market share in retail/corporate). (See bank reports/industry summaries.)
• National Development Bank (NDB) / NDB Bank — important commercial / development lender in the top‑tier group.
• DFCC Bank — specialist/commercial bank with growing asset base. (en.wikipedia.org)
• Seylan Bank — mid‑to‑large private bank (part of LOLC group). (en.wikipedia.org)
• Nations Trust Bank (NTB) — significant private bank focused on retail and corporate business.
• Amãna Bank — Islamic (Sharia‑compliant) commercial bank, among the larger niche banks. (en.wikipedia.org)

Notes and context

• The order above is approximate and intended to show the largest/most important commercial banks operating in Sri Lanka. Exact ranking depends on the metric used (total assets, deposits, loan book, market capitalisation). For example: BOC and People’s Bank (both state banks) hold the largest asset bases overall, while Commercial Bank of Ceylon is the largest private bank and is widely cited as the largest private‑sector lender. (reportsar.boc.lk)
• The figures I referenced are based on year‑end 2024 and early‑to‑mid 2025 disclosures (annual reports and press releases). If you want a precise ranked list (for example “rank by total assets as of December 31, 2024”) I can compile that with exact asset/deposit/loan numbers and cite the original annual reports for each bank.

Would you like a strict ranking by total assets (with numbers and source links), or a shorter list focused on retail banking market leaders?