The teacher, Mr Harka Bahadur Subba, 39, who came to Thailand with a team of agriculture was on a training of agriculture in Thailand.
He was reported missing at 6.30am on Monday January 23 as he walked from the Sena Place Hotel in the Phahon Yothin area in Bangkok.
His team later returned to Bhutan last week after he could not be contacted.
According to JS100 Radio, Mr Harka was spotted crossing the Sukhumvit road in front of Imperial Samrong department store today.
A CCTV camera at Samrong captured the man in gray striped shirt crossing the road.
JS100 Radio in cooperation with Samut Prakarn provincial police launched a massive search for Mr Harka throughout yesterday after residents living near Chao Phor Thap shrine in Samrong Tai alerted the police after seeing the Bhutan teacher staying around the shrine.
They told police that the man, who could not communicate with anybody as he spoke only in Bhutan native language, would come to use the toilet at the shrine every morning.
Samrong Tai police confirmed the spotting of the man and identified he was Mr Harka.
They called off the search last night but was confident to locate him this morning when he came to use the toilet.
The police are now tracking the Buhtan teacher from the video cameras deployed in the area.
Mr. HARKA ชาวภูฎาน พบล่าสุด06:30 น.เดินข้ามถนนจากมาที่หน้าห้างอิมพีเรียลฯ สำโรง คาดเดินเข้าตลาดพบเห็นโทร *1808 pic.twitter.com/xxaCg4CLqc
— JS100 (@js100radio) February 1, 2017