I have a question about a paper of mine, which is highly likely to be published. Do you think I could put the following disclaimer: "This paper gives the views of the author, and not necessarily the position of the...(name of university)"? If yes, where is the right place to put it? Thank you in advance!
This is likely to be fine. You should look a the most recent 1-2 volumes of the journal you most want to publish the paper in and copy the disclaimer wording and placement that is used there.
I have seen it required in Theses, but not in peer-reviewed publications.
If the journal requires it, it would be mentioned in the guide for authors.
But if anyone cares, it would be the institution.
Check a couple publications from your institution or ask a senior author if they have done it before.