Here is a nice link in English, where you can see the popularity for each name, if you are interested:
https://192.49.222.187/Nimipalvelu/default.asp?L=3
Eija - Pronounced AY-yah, as you said.
Irina - Finnish pronouncition would be: I-ri-nah. It is also popular in Russia, where it is pronounced i-REE-nah
Kaarina - Pr. KAH(long)-ri-nah
Kielo - prn. KIE-lo (I like in eagle, E like in
Ella), I like it
Kiira - Prn. like
Kira in Russian, but with a long i. I have bad associations with it.
Lahja - prn. L-AH-H-Y-AH, LAH-yah
Loviisa - Also used in Sweden, prn. LAW-vee(long)-sah, it is a city in Finland as well
Lumi - Means "snow". (prn. LOO-mee), not often used
Matleena - pronounced MAHT-le(long)-nah
Meri - Means "the sea". - Pronounced a bit like
Merry, I love it
Paiva - You mean Päivä? Yes, it means day. "Ä" is hard to explain - it is pronounced æ, but you can say -e- as well, many people, who learn learned Finnish, do so.
Pauliina - Finnish form of
Paulina. Prn. P-AH-OO-L-EE(long)-N-AH, PAHOO-lee-nah
Petra - prn- PE-trah
Pinja - prn. PIN-yah, I can't explain, why, but I hate it...
Piritta - Pi-ri-ttah
Priita - PREE(long)-ttah
Riika - Are you sure you don't mean
Riikka?
Riika is a capital of Latvia in Finnish. prn. REE(long)-kah. But of course,
Riika is used in finland as well - it is not that popular.
Satu - Prn. (SAH-too), Adorable name!
Seija - I didn't know it means tranquil or serene! prn. SAY-yah
Siiri - SEE(long)-ri, a few years ago it was really popular
Silja - prn. as the end of
CeciliaSohvi - pronounced S-AW-H-V-EE, SAWH-vee
Suvi - prn. SOO-vee, I like it
Taika - TAHI-kah
Tarja - TAHR-yah
Taru - TAH-roo
Tea - prn. like
Thea, but the "T" is like in
Teagan or
TallulahTeija - TEI-yah
Teresa - TE-re-sah
Tuija - prn. TOO-IYAH
Boys:
Jalo - prn. YA-lo :)
Mainio - prn. M-AH-I-NI-AW, MAHI-nee-aw, virtue names are not really popular at the moment, in my experience, of course
Mikko - prn. MIK-kaw
Niilo - prn. NEE(long)-law
Niko - prn. NEE-kow
Oskari - prn. like
Oskar, but with an "i" at the end
Otto - prn. AW-T-T-AW, AWT-taw
Paavali - prn. PAH(long)-vah-lee
Paavo - prn. PAH(long)-vaw
Reijo - prn. REI-yoh
Reko - prn. RE-kaw
Roopertti - Never heard before. :P prn. RAW(long)-pert-tee
Sebastian - Pronounced as
Sebastian in English, but the accent is at the ferst syllable: SE-bahs-tee-ahn
Sepi - prn. SE-pi
Severi - prn. SE-ve-ri
Simo - pronounced SI-maw
Sulo - prn. SOO-law
Taavi - TAH(long)-vee
Tahvo - T-AH-H-V-AW, TAHH-vaw
Taneli - TAH-ne-li, dislike
Tarmo - TAHR-maw
Timo - prn. TI-maw-tee
Veli - prn. VE-li
Also, WDYTO
Jasper? I used to hate it, but recently I've been loving it.
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Jasper? Stone names are nms. :S