The Most Popular Programming Languages 2025. For october 2025, python continues to reign as the most popular programming language, growing by +7.08 percent in the past month and holding a 21.90 percent market. I'll break down each with a quick note on why they're important this year.

The top 10 programming languages in october 2025, according to the tiobe programming community index, are: In this post, we’ll break down the top 10 programming languages that are set to dominate 2025.