The book entitled "Introduction to Speaker Recognition,Applications and Techniques" tries to deal with the fundamental issues of basic speaker recognition techniques related with Speech Science and Technology. This book is developed based on the research works carried out in speech signal processing specially in the area of speaker recognition over past several years as well as my a little bit research experience in the area namely speaker verification system in multilingual environment during my PhD works. This book is suitable for the new researchers in the area of speaker recognition specially in speaker verification system of speech signal processing as well as applications for the student of electrical and electronics engineering, computer science and engineering and computer science as well as computer application. Hope, students will be highly benefited through this book.