Police said they arrested Joachim Chinakwe after a neighbor complained that the display in southwestern Ogun state was provocative.
Nigerian newspapers on Wednesday quoted Chinakwe as arguing in court that he named his dog because President Muhammadu Buhari is his hero.
He was charged with conduct "likely to cause a breach of the peace."
Nigerians took to social media, with one warning, "If we keep quiet when they arrest the man who named his dog Buhari, who will talk for us when they arrest us for criticizing the real Buhari?"
The case was adjourned until Sept. 19.
Court charges man who named dog after Nigerian president
25 August 2016
Read: 1604
A man who wrote the name of Nigeria`s president on his dog and paraded the pet in an area where the leader is popular has been charged with breaking the peace.
