A programmer, computer programmer, or coder is a person who writes computer software. The term computer programmer can refer to a specialist in one area of computer programming or to a generalist who writes code for many kinds of software. One who practices or professes a formal approach to programming may also be known as a programmer analyst. A programmer's primary computer language (C, C++, Java, Lisp, Python etc.) is often prefixed to the above titles, and those who work in a web environment often prefix their titles with web. The term programmer can be used to refer to a software developer, software engineer, computer scientist, or software analyst. However, members of these professions typically possess other software engineering skills, beyond programming; for this reason, the term programmer is sometimes considered an insulting or derogatory oversimplification of these other professions. This has sparked much debate amongst developers, analysts, computer scientists, programmers, and outsiders who continue to be puzzled at the subtle differences in the definitions of these occupations.

Ein Programmierer ist jemand, der Computerprogramme entwirft, weiterentwickelt und Fehler darin korrigiert. Diese Tätigkeit wird als Programmieren bezeichnet. Der Programmierer bedient sich hierzu einer geeigneten Programmiersprache. Der erste Programmierer der Geschichte war eine Frau: die britische Mathematikerin Ada Lovelace.

Programmerare är ett yrke som innebär att personen ägnar sig åt programmering av någon sorts maskin, numera vanligen en dator, men historiskt kan även sådant som hålkortsdrivna vävstolar sägas vara programmerade. Ada Lovelace anses vara världens första programmerare. Hon var den första som skapade en algoritm avsedd att användas i en dator i oktober 1842.

Programista to osoba zajmująca się tworzeniem i rozwojem oprogramowania. Prawdopodobnie pierwszą programistką w historii była Ada Lovelace. W dzisiejszych czasach określa często zawód nie związany z pisaniem kodu źródłowego programu, lecz wszystkie poboczne aspekty inżynierii oprogramowania.

Il programmatore (o coder) è il professionista che scrive dei programmi software in un determinato linguaggio di programmazione.