Developers of programming languages

Some key people who helped develop programming languages:

Alan Cooper, developer of Visual Basic.
Alan Kay, pioneering work on object-oriented programming, and originator of Smalltalk.
Anders Hejlsberg, developer of Turbo Pascal, Delphi, C#, and TypeScript.
Bertrand Meyer, inventor of Eiffel.
Bjarne Stroustrup, developer of C++.
Brian Kernighan, co-author of the first book on the C programming language with Dennis Ritchie, coauthor of the AWK and AMPL programming languages.
Dennis Ritchie, inventor of C. Unix Operating System, Plan 9 Operating System.
Edsger W. Dijkstra, developed the framework for structured programming.
Grace Hopper, inventor of the first compiler and developer of Flow-Matic, influencing COBOL. Popularized machine-independent programming languages and the term "debugging".
Guido van Rossum, creator of Python.
James Gosling, developer of Oak, the precursor of Java.
Jean Ichbiah, chief designer of Ada, Ada 83
Jean-Yves Girard, co-inventor of the polymorphic lambda calculus (System F).
Jeff Bezanson, got a PhD for the Julia language, one of the designers, and one of the core developers (and only developer of FemtoLisp).
Joe Armstrong, creator of Erlang.
John Backus, inventor of Fortran and cooperated in the design of ALGOL 58 and ALGOL 60.
John C. Reynolds, co-inventor of the polymorphic lambda calculus (System F).
John McCarthy, inventor of LISP.
John von Neumann, originator of the operating system concept.
Ken Thompson, inventor of B, Go Programming Language, Inferno Programming Language, and Unix Operating System co-author.
Kenneth E. Iverson, developer of APL, and co-developer of J along with Roger Hui.
Konrad Zuse, designed the first high-level programming language, Plankalkül (which influenced ALGOL 58[14]).
Kristen Nygaard, pioneered object-oriented programming, co-invented Simula.
Larry Wall, creator of the Perl programming language (see Perl and Perl 6).
Martin Odersky, creator of Scala, and previously a contributor to the design of Java.
Nathaniel Rochester, inventor of first assembler (IBM 701).
Niklaus Wirth, inventor of Pascal, Modula and Oberon.
Ole-Johan Dahl, pioneered object-oriented programming, co-invented Simula.
Rich Hickey, creator of Clojure.
Robin Milner, inventor of ML, and sharing credit for Hindley–Milner polymorphic type inference.
Stephen Wolfram, creator of Mathematica.
Yukihiro Matsumoto, creator of Ruby.