Coja Petrus Uscan (b. 1680/81 – d.1751) was an Armenian merchant and leader of the Armenian community of Madras who was known for his immense wealth and unflinching devotion and loyalty to the British during the French occupation of Madras.
Petrus Uscan was born in a family of prominent Armenian traders which had traded with the East for generations. His grandfather Coja Pogus (Paul) had been buried in Julfa. Very little is known of his early life except for the fact that he migrated to Madras in the year 1723 and settled in the city for the rest of his life.
As soon as Uscan arrived in Madras, the Nawab of the Carnatic visited Madras and Uscan lavished hospitality upon him. A pleased Nawab offered gifts and titles and sole monopoly of trade in Madras.
Petrus Uscan donated lavishly for Christian religious endowments. He was one of the foremost contributors to the construction of St Rita's church in St Thome. A slab on the east wall of the church has the inscription "In memory of the Armenian nation, 1729". In April, the very same year, the grave of St Thomas was opened for public viewing. Uscan was among those present.
In 1728, Coja Petrus Uscan constructed the Marmalong Bridge across the Adyar River. It cost him 30,000 pagodas. Still, he paid the full amount and also donated 1,500 pagodas for the bridge's upkeep.
The bridge no longer exists today, having been replaced by a second bridge. However, the bridge built by Uscan is the first ever bridge built across the Adyar.
In 1726, he constructed the steps which led to the Catholic shrine atop St Thomas Mount which still bears a slab commemorating Uscan's legacy. He also donated 1,500 pagodas for the maintenance of the steps.
Uscan was appointed Company Councillor for the British East India Company. Uscan performed well in his newfound role, occasionally serving as the Company's envoy. In 1740, when the Maratha general Raghuji Bhonsle invaded the Carnatic, Petrus Uscan was appointed the British envoy to negotiate peace with the Maratha general. Uscan negotiated with the Marathas and impressed the general so much that he even recognized British rule over Tiruchirappalli, Madras and Fort St David. On another occasion, Petrus Uscan succeeded in obtaining exclusive rights for the British of Madras to mint coins in their own name.