Until now, Amazon Prime Video was available only in the United States, Britain, Germany, Austria and Japan.
The giant retailer announced it was offering the service at no additional cost to existing customers of Amazon Prime in Belgium, Canada, France, India, Italy and Spain.
For customers in the new markets, the service is being offered at an introductory price of USD 2.99 (euros) per month for the first six months, instead of the standard USD 5.99 (euros).
Netflix expanded to 190 countries at the start of 2016, billing itself as the first global television service.
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Amazon's flagship programme is "The Grand Tour," a lavishly-funded and critically-acclaimed version of BBC's laddish car series, "Top Gear".
The company hired its colourful host, Jeremy Clarkson and two loyal co-stars, after the BBC dropped Clarkson for punching a producer.
The BBC came back with a rebooted version featuring new presenters but the programme suffered mediocre reviews.
Together they have spent some USD 7.5 billion -- more than competitors CBS, HBO, or Turner, according to analysts IHS Markit.
Netflix's hit series include "House of Cards," "Orange is the New Black" and "Narcos".
It has planned for more than 1,000 hours of original programming next year and expanded its content budget to some USD 6 billion.
Original Amazon productions "Transparent" and "Mozart in the Jungle" won prestigious Emmy Awards in the US.
Prime Video is a perk of an Amazon subscription service that includes free delivery of products bought at its online store, which has moved dramatically beyond its early days as a bookseller.