Green’s Functions in Classical Physics Prologue About the State of Physics Basic Structural Elements of Physics About Classical Physics and Quantum Mechanics Greens Functions of Classical Particles The Simple Harmonic Oscillator The Damped Harmonic Oscillator Elementary Motions of a Point Mass Lippmann Schwinger Equation Two Systematic Ways to Derive Greens Functions Temporal Boundary Value Problem of the Harmonic Oscillator Two Simple Interaction Processes and Huygens Principle Particle Scattering on a Rigid Sphere and Kepler Problem Greens Functions of Classical Fields Comments on the Field Concept The Elastic String Poisson Equations of Higher Dimensions Wave Equations of Higher Dimensions The Scalar Helmholtz Equation Scattering Problems Probability Experiments and Greens Functions in Classical Event Spaces Probability Experiments in a Two Dimensional Event Space Probability Experiments in a Four Dimensional Event Space Outlook or Something Like an End Classical Free Point Mass and Greens Function of the Diffusion Equation Schrödinger Equation of the Free Particle and Greens Function Classical Fokker Planck Equation and Schrödinger Equation A Relation Between the Greens Functions of the Klein Gordon and Dirac Equation This book presents the Green’s function formalism in a basic way and demonstrates its usefulness for applications to several well known problems in classical physics which are usually solved not by this formalism but other approaches. The book bridges the gap between applications of the Green’s function formalism in quantum physics and classical physics. This book is written as an introduction for graduate students and researchers who want to become more familiar with the Green’s function formalism. In 1828 George Green has published an essay that was unfortunately sunken into oblivion shortly after its publication. It was rediscovered only after several years by the later Lord Kelvin. But since this time using Green’s functions for solving partial differential equations in physics has become an important mathematical tool. While the conceptual and epistemological importance of these functions were essentially discovered and discussed in modern physics especially in quantum field theory and quantum statistics these aspects are rarely touched in classical physics. In doing it this book provides an interesting and sometimes new point of view on several aspects and problems in classical physics like the Kepler motion or the description of certain classical probability experiments in finite event spaces. A short outlook on quantum mechanical problems concludes this book