Below are highly romantic, luxury hotels and villas across Sri Lanka that offer private pools (plunge pools, pool villas or private infinity pools). I’ve grouped them by region and included a short note on why each is romantic and what private-pool accommodation they offer.

South coast (beaches — Bentota / Galle / Mirissa / Tangalle)

• Amanwella (Tangalle area) — minimalist luxury, beachfront pool suites and hill/garden pool suites with private plunge pools and ocean views; ultra-private suites ideal for honeymoons. (nearfarmag.com)
• Saman Villas (Bentota) — cliff-top boutique resort with a small number of suites (some with private pools), intimate atmosphere and gorgeous sunset views. (en.wikipedia.org)
• Cape Weligama (Weligama) — dramatic cliff-top resort with private pool villas and suites, outstanding ocean views and private dining options for couples. (honeymoonguidesrilanka.com)
• Aditya / Aditya Resort (near Galle / Hikkaduwa) — boutique seaside suites and suites with private plunge pools or jacuzzis in enclosed garden settings. Very private and romantic. (oyster.com)
• Ahu Bay (southwest coast) — small boutique resort offering one-bedroom and multi‑bedroom pool villas right on the coast — secluded and intimate. (nearfarmag.com)
• Wild Coast Tented Lodge (Yala peninsula, near southern tip) — luxury tented “cocoons” and villas with private plunge pools on a wild, near-deserted beachfront — dramatic, adventurous romance. (vanityfair.com)

Cultural Triangle / Central Plains (Sigiriya / Dambulla / Kandy / Hill country)

• Water Garden by Jetwing (Sigiriya) — suites inspired by ancient water-garden design; many villas/suites have private plunge pools with views toward Sigiriya Rock — excellent for couples seeking a royal, secluded experience. (honeymoonguidesrilanka.com)
• Ceylon Tea Trails (Hatton/Nuwara Eliya area) — converted colonial tea-planter bungalows set on tea estates; select suites have private terraces and plunge pools (or private garden pools at some houses). Romantic for cooler-hill getaways and tea-walks. (honeymoonguidesrilanka.com)
• Santani (near Kandy / hill country) — wellness retreat with new luxury villas that include private infinity pools overlooking valleys — tranquil, restorative and intimate. (wallpaper.com)

Hill country / Kandy area

• The Kandy House (Kandy) — intimate manor-house hotel with private garden suites; some villas offer private plunge pools or secluded garden bathing areas — atmospheric colonial romance. (thetimes.co.uk)
• Aarunya Nature Resort (Kandy area) — private pool villas with mountain and Knuckles Range views; sunrise vistas and privacy make it special for couples. (honeymoonguidesrilanka.com)

Other luxury properties with private pools (scattered locations)

• Anantara Kalutara / Anantara Peace Haven (Kalutara) — some villa categories include private plunge pools and villa hosts; high-end beach romance with service and private dining. (honeymoonguidesrilanka.com)
• Water-edge historic villas and boutique private villas (examples: Rock Villa by Nyne, selected independent villas near Bentota / Tangalle) — many boutique villas offer private pool suites or garden plunge pools for full privacy. (honeymoonguidesrilanka.com)

How to choose (quick tips)

• For dramatic ocean-cliff views and sunsets: Amanwella, Cape Weligama, Saman Villas. (nearfarmag.com)
• For private villa-style seclusion on the beach: Ahu Bay, Aditya, selected boutique villas near Tangalle/Bentota. (nearfarmag.com)
• For a hill‑country/tea‑estate romantic escape with private pools and cool weather: Santani, Ceylon Tea Trails, Aarunya. (wallpaper.com)
• For a wild, private-beach + safari combination: Wild Coast Tented Lodge (private plunge pools and secluded beach). (vanityfair.com)

Practical notes

• “Private pool” can mean a small private plunge/infinity pool or a larger pool villa — check the specific room/villa category (Villa / Pool Suite / Plunge Pool Suite) when booking. I cited hotel pages and travel guides above but recommend verifying the room photos and the exact private‑pool type on the hotel’s site or your booking platform before reserving. (nearfarmag.com)

If you’d like, I can:

• Narrow this to a short list based on which region you prefer (beach vs. hill country vs. cultural triangle), or
• Find current availability and price estimates for a particular hotel for your travel dates (I’ll need the dates and number of guests).