I have a UK DClinPsy. Can I use a plain 'Dr.' title in Germany? A resposible german executive body (Kultusministerkonferenz) decided that certain doctorates from the EU grant the right to use the title 'Dr.':


  Inhaber von in einem wissenschaftlichen Promotionsverfahren erworbenen Doktorgraden, die
  in [meiner Uni] erworben wurden, können anstelle der
  im Herkunftsland zugelassenen oder nachweislich allgemein üblichen Abkürzung [...] wahlweise die Abkürzung „Dr.“ [...] führen. Dies gilt nicht für Doktorgrade, die ohne
  Promotionsstudien und -verfahren vergeben werden (so genannte Berufsdoktorate) und für
  Doktorgrade, die nach den rechtlichen Regelungen des Herkunftslandes nicht der dritten
  Ebene der Bologna-Klassifikation der Studienabschlüsse zugeordnet sind. 


excluding non third cycle qualifications (Bolonga EHEA term) and doctorates that do not require some not further defined sort of studies ("doctoral" studies) with professional doctorates given as example. However, a UK doctor of clinical psychology (DClinPsy) is usually considered equivalent to a PhD.

So, am I allowed to use Dr. MyName in Germany?

And will I be after Brexit?
There is a department in every state in Germany at the Kultusminister / Senator for Science &amp; Education that deals with exactly this issue. You submit your degree papers and they will tell you in a written letter if your degree is able to be used as "Dr." in Germany. But we are trying so hard to lose this business in Germany about being "Herr Doktor" and "Frau Doktor", why would you want this? Indeed, the KMK paper is just about the EU partners, so if there is a Brexit, this may change. No one knows yet what the results of Brexit will be.