The Central Election Commission said Aliyev had gained 88.73% of the votes cast in the presidential elections held on October 15. With more than 4.8 million people registered to vote, the turnout stood at 75.12%.
None of the six opposition candidates have won more than 3% of the vote, the commission said.
The six main opposition parties boycotted the polls, citing a clampdown on dissent and media restrictions.
Aliyev took over as president when his father, Heydar, stepped down in 2003, subsequently winning 76.84% of the vote in that year's presidential election.
Russian President Dmitry Medvedev earlier congratulated Aliyev on his victory and wished him success, while Prime Minister Vladimir Putin voiced the hope that bilateral ties would actively develop.
