The England international moved to Liverpool FC in a £40m deal from Arsenal on transfer deadline day last summer.
Oxlade-Chamberlain turned down a new Arsenal contract and the chance to move to 2017 champions Chelsea FC in favour of a switch to Anfield.
The 24-year-old made a slow start to his Anfield career after manager Jurgen Klopp used the versatile midfielder sparingly in the opening months of the season.
However, the Southampton youth graduate came into his own in the second half of the season and played a key role in their run to the Champions League final.
Oxlade-Chamberlain, who netted against the Citizens in a 4-3 Premier League win at Anfield, broke the deadlock in the first leg of their quarter-final with a long-range strike that beat Ederson.
He played a key role in their 2-1 win at the Etihad Stadium in the second leg alongside James Milner and Georginio Wijnaldum.
However, Oxlade-Chamberlain’s season was ended prematurely after he suffered a serious knee problem in their 5-2 win over AS Roma in the last four.
He can take solace from his strike against Manchester City being named Liverpool FC’s goal of the season.
Speaking to Liverpool FC’s website, Oxlade-Chamberlain said:
“I just want to say a big thank-you to everyone who voted for me for Goal of the Season.
“It was definitely one of the highlights of my career to be able to score in a quarter-final of the Champions League with quite a special goal. It was definitely one of the highlights of my season.
“A big thank-you to everyone who voted me for that.
“To be able to contribute to the Champions League run has been fantastic – hopefully the boys can finish it off and get me a medal! Thanks again.”
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