There are many programming languages that are in widespread use today, and many of them are likely to continue to be popular in the future. Some of the most popular programming languages that are likely to be in demand in 2023 include:

1. Python: Python is a high-level, general-purpose programming language that is widely used in a variety of fields, including web development, data science, and machine learning. It is known for its simplicity and readability, making it a good choice for beginners.

2. Java: Java is a popular programming language that is used for building a wide range of applications, including web, mobile, and desktop applications. It is known for its portability, as Java programs can run on any device that has a Java Virtual Machine (JVM) installed.

3. C++: C++ is a high-performance programming language that is widely used in fields such as game development, system programming, and applications that require a lot of computational power. It is a more complex language than Python or Java, but it is a powerful tool for building efficient and high-performing applications.

4. JavaScript: JavaScript is a popular programming language that is used for building web applications. It is known for its versatility and is used in a wide range of applications, including web front-end development, server-side development, and mobile app development.

5. C#: C# is a modern, object-oriented programming language that is widely used in the development of Microsoft applications. It is a powerful language that is used for building a wide range of applications, including web, mobile, desktop, and gaming applications.

Ultimately, the best programming language to learn in 2023 will depend on your goals and the type of projects you want to work on. It is a good idea to consider learning multiple languages, as this will give you more flexibility and allow you to take on a wider range of projects.