He is accused of having married 28 times.
Police arrested Yasin Byapari, 45, from Taltali of Barguna district.
A court sent him to jail in a dowry case filed by his '25th wife' Shiuli Akhter Tania.
Taltali ASI Saidul Islam said Yasin was arrested Sunday evening at the parents' house of his '27th wife' in Gondamara village in the area.
He said Shiuli Akhter Tania, a woman from Gopalpur village in Paikgacha Upazila in Khulna district, filed a case with the Khulna Chief Judicial Magistrate, implicating Yasin in a dowry case on Sep 29.
The court issued an arrest warrant for him, which led to his Sunday arrest, Saidul said.
Taltali OC Kamalesh Halder said Tania has accused Yasin of suppressing information and marrying 28 times.
He, however, said Yasin had confessed to marrying only twice during preliminary interrogation.
Speaking to bdnews24.com, Tania said she married Yasin in 2011.
After the birth of a daughter, she discovered she was not the only wife of her husband.
In fact, she was "his 25th wife!"
After she came to know of this, she managed to trace the name and addresses of 17 of her husband's spouses.
She claimed Yasin has two daughters with his second wife, one son with his third wife, one son with his seventh wife and a daughter with his 24th wife.
She said after their marriage, Yasin cited work as an excuse to often stay away from home.
At one point, he began to assault her physically while demanding dowry.
"Then without informing me, he married a girl from Matibhanga area of Rajapur Sadar Upazila," she alleged.
But the girl divorced Yasin after she discovered his exploits, she said.
"Then in the middle of 2015 he married a Chittagong-based girl from Taltali. But he did not take her to his house and went on to marry a garment worker from Khulna," she said.
Although Tania provided the name and address of her husband, police have not been able to corroborate the claims.