As we approach 2023, the world of programming is constantly evolving, with new languages and technologies emerging every day. Here are the top 20 programming languages that you should consider learning to stay competitive in the tech industry:

1. Python: Python is one of the most popular programming languages in the world, known for its simplicity, readability, and versatility. It is widely used in data science, machine learning, and web development.
2. JavaScript: JavaScript is the backbone of web development, used for both front-end and back-end development. It is also used for building mobile and desktop applications.
3. Java: Java is a widely used programming language that is used for building enterprise applications, Android mobile apps, and backend systems.
4. C#: C# is a popular programming language developed by Microsoft, used for building Windows desktop applications, video games, and mobile apps.
5. Swift: Swift is the programming language used for building iOS and macOS applications. It is designed to be fast, safe, and easy to use.
6. PHP: PHP is a server-side scripting language used for building dynamic websites and web applications.
7. Ruby: Ruby is a popular programming language used for web development, game development, and building desktop applications.
8. Go: Go is a programming language developed by Google, used for building fast and scalable web applications and microservices.
9. Rust: Rust is a system programming language that is fast, safe, and memory-efficient. It is commonly used for building system software, web browsers, and game engines.
10. Kotlin: Kotlin is a modern programming language used for building Android applications, server-side applications, and web applications.
11. TypeScript: TypeScript is a superset of JavaScript that adds static typing and other features to make JavaScript code easier to manage and maintain.
12. C++: C++ is a high-performance programming language used for building operating systems, game engines, and other low-level applications.
13. Swift: Swift is a modern programming language used for building iOS and macOS applications.
14. Scala: Scala is a programming language used for building large-scale applications, especially in the data science and machine learning fields.
15. Lua: Lua is a lightweight programming language used for building video games, web applications, and embedded systems.
16. Dart: Dart is a programming language used for building web and mobile applications. It is the language used by Google for building Flutter, a popular mobile app development framework.
17. R: R is a programming language used for data analysis, statistics, and machine learning.
18. Julia: Julia is a high-performance programming language used for scientific computing and machine learning.
19. Shell scripting: Shell scripting is used for automating tasks on Unix-based operating systems, making it a valuable tool for system administrators.
20. SQL: SQL is the programming language used for managing and manipulating relational databases. It is a must-learn language for anyone working with data.

In summary, these are the top 20 programming languages that you should consider learning in 2023 to stay competitive in the tech industry. Depending on your career goals and interests, you may want to focus on one or more of these languages to develop your skills and advance your career.