Here are 10 top destination‑wedding resorts in Sri Lanka (grouped by region) with why couples choose them, typical capacities or buyout notes, and official / authoritative sources you can contact for packages.

South coast & clifftop (dramatic ocean views)

• Cape Weligama — Weligama: clifftop villas and dramatic ocean platforms make it a favourite for intimate-to-medium luxury weddings; resort offers bespoke wedding packages and full‑resort buyouts for larger groups (suitable for ~2–60 guests; buyout recommended for >30). (resplendentceylon.com)
• Anantara Peace Haven Tangalle — Tangalle: cliffside/sea‑view ceremony sites, full wedding brochure and dedicated wedding team (venues for up to ~200 guests). Good for luxury beach or cliff ceremonies. (anantara.com)
• Amanwella — Tangalle: secluded luxury beach resort with private‑pool suites and intimate outdoor/terrace wedding settings (ideal for intimate weddings; resort buyout rules apply). (aman.com)

West coast & Bentota (classic beach resorts)

• Taj Bentota Resort & Spa — Bentota: large resort ballroom and sea‑terrace venues (banquet/terrace capacities ~150–275 depending on venue); good if you need both beach and larger indoor reception options. (tajhotels.com)
• Cinnamon Bentota / Cinnamon Lakeside (Colombo) — Cinnamon group: Cinnamon Bentota (beach resort with ballrooms) and Cinnamon Lakeside (Colombo inland lake + grand ballrooms) offer well‑documented wedding packages and multiple venue sizes (50–350+ pax). Useful if you want city or beach options with established banquet packages. (cinnamonislandweddings.com)

Galle / southern colonial & boutique

• Jetwing Lighthouse — Galle (southern coast): iconic ocean‑front boutique hotel with coastal lawn and three wedding packages; excellent for sunset ceremonies and intimate receptions. (jetwinghotels.com)
• Galle Face Hotel — Colombo (heritage city option): historic oceanfront venue with large ballrooms and the famous Chequerboard lawn; excellent for large guest lists and a colonial‑heritage vibe (ballrooms/venues up to several hundred). (gallefacehotel.com)

East coast & quieter beaches

• Uga Bay (Uga Escapes) — Pasikuda / Passekudah: wide, calm east‑coast bay ideal for toes‑in‑the‑sand ceremonies; tailored wedding services and flexible outdoor spaces (best for seasons when east coast is dry). (ugaescapes.com)

Hill country & tea‑estate (for a cooler, very different vibe)

• Ceylon Tea Trails — Hatton / Nuwara Eliya area: restored tea‑planter bungalows in the highlands for intimate, private weddings (best for small groups, often full‑property buyout for privacy; ideal 2–60 guests). Very photogenic for tea‑estate weddings. (resplendentceylon.com)

Practical planning notes (season, legalities, timing)

• Best season by region: the island has two monsoons. For the west & south coasts and central highlands the drier season is roughly December–April (best for beach/cliff weddings in Galle/Bentota/Tangalle). The east coast (Passekudah/Trincomalee) is typically driest April–September. Plan regionally to avoid the local monsoon. (scottdunn.com)
• Legal/registration basics: legal requirements and residency/notice rules vary (some registries/embassies reference 4–14 day notice/residency rules and require certain documents, affidavits and identity papers). If you want your ceremony to be legally registered in Sri Lanka you should confirm requirements with the Sri Lankan Registrar General or your nearest Sri Lankan embassy/consulate well in advance (requirements differ if one party is Sri Lankan). U.S. State Department / Embassy pages and local registries are good authoritative starting points. (travel.state.gov)
• Book timing & vendors: for popular months (Dec–Mar on the south/west coast) reserve venue and preferred wedding planner/photographer 9–18 months ahead; enquire about resort buyout minimums, minimum‑room‑block rules, and noise/entertainment policies (many resorts have separate rules for DJs, outside vendors and liquor licensing). See each resort’s wedding page or contact their events team for current packages and capacity limits. (resplendentceylon.com)

How to use this list

• Use clifftop/ultra‑luxury choices (Cape Weligama, Anantara, Amanwella) for dramatic photography and small-to-medium luxury groups.
• Use larger beach resorts (Taj Bentota, Cinnamon group, Galle Face) if you need big indoor ballrooms and higher guest counts.
• Choose the east coast (Uga Bay) or hill country (Ceylon Tea Trails) if you want a quieter, region‑specific experience or seasonal advantage.

If you want, I can:

• produce a 3‑venue shortlist for small (≤50), medium (50–150) or large (150+) guest lists, or
• pull current wedding package brochures and estimated price ranges for 2–3 resorts you’re strongest on (I’ll fetch their latest wedding brochures and capacities).

Which of the above would you like to see next?