"As a country of 53 million, Myanmar's recent opening-up has triggered an explosion of people coming online," Google product manager Mr Brian Kemler said in a blog post.
"As recently as 2011, a mere 500,000 Myanmar citizens were able to access the Internet, which was less than one percent of the population," he added.
He said the number of people in Myanmar who can get online has grown to 2.6 million, as the availability of mobile phones has increased.
Mr Kemler noted that "our team has been working hard to ensure Google is ready to support this new community in their own language."
"To capture the nuances of this language and make sure the translations were accurate, consistent and complete, we relied on an array of Myanmar speakers from within the country, and around the world," he said.
"In April 2013 we launched Google Search in Myanmar, and today we're excited to announce that Gmail now supports Myanmar, our 74th language."