According to data released in December of 2016 by Statistics Austria, the most popular baby names in the country in 2015 were Anna (and variants) and Lukas (and variants).
Here are Austria’s top 10 girl name-groups and top 10 boy name-groups of 2015:
Girl Names
1. Anna (21 variants, including Ann, Hannah, Yahna)
2. Sophie (12 variants, including Sophia)
3. Maria (36 variants, including Merry, Moira, Miriam)
4. Emilia (14 variants)
5. Elena (40 variants, including Elaine, Helen, Ilijana)
6. Emma (1 variant)
7. Lena (8 variants)
8. Sarah (9 variants)
9. Mia (2 variants)
10. Laura (1 variant)
Boy Names
1. Lukas (11 variants, including Luc)
2. David (12 variants)
3. Jakob (20 variants, including Giacomo, Jaime, Tiago)
4. Elias (31 variants, including Ilian)
5. Maximilian (9 variants)
6. Alexander (32 variants, including Alejandro, Alistair, Iskender)
7. Jonas (12 variants)
8. Paul (7 variants, including Pablo)
9. Tobias (3 variants)
10. Leon (7 variants, including Levon)
The #1 name-groups were the same in 2014. There are no new entries on either top 10 list.
Source: Anna und Lukas sind die beliebtesten Babynamen 2015 (found via Popularity of Names in Austria, 2015)