Hi,
I don't see why not, if you follow the
https://wiki.openstreetmap.org/wiki/Import/Guidelines
Basically: make sure the data is good and is imported in a decent way; make
sure the community isn't opposed to it; check the license; discuss on the
import mailing list
As for the license, the CC-BY
The city of Namur as publish a map of every grave in her cemetery
in french
https://www.rtbf.be/info/regions/namur/detail_namur-une-cartographie-detaillee-des-35-000-sepultures-namuroises?id=10619526
https://www.namur.be/fr/ma-ville/amenagement-du-territoire/cartographie/cartographie-en-lign
