A Dog's Head
Scholars have said that if a dreamer sees their head transformed into a dog's head, it might indicate injustice towards their subjects and foolish treatment of them. This suggests misconduct and a lack of wisdom in dealing with those under their charge.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam
Note: These are traditional scholarly interpretations (ijtihad) drawn from a specific classical source — not a binding religious ruling, fortune-telling, or a prediction of the future.