In this book, we explain the subject of digital signal processing with MATLAB examples. Digital signal processing has a wide field of study in electronic engineering. MATLAB program is a computer software that offers a wide range of working opportunities in engineering sciences. While preparing this book, we wanted it to be of maximum benefit, not only just providing MATLAB applications on digital signal processing, but also as a good MATLAB tutorial. That's why we prepared the starting chapters of the book as MATLAB tutorial. The MATLAB examples cover the subjects: sampling, spectral domain analysis of samples signals, downsampling, upsampling, interpolation, disctete Fourier transform, analog and digital filter design. In the book, basic MATLAB commands are explained in detail in the first four chapters. These chapters were prepared considering the readers who do not know the MATLAB programming language, want to remember it, or want to reinforce what they know. In the fifth chapter, the basic signals frequently used in the literature are explained in continuous and discrete time form. In the Chapter-6, sampling of continuous time signals is explained. We also covered spectral overlapping, i.e., aliasing problem.