Kinetic theory describes large systems of interacting particles at the mesoscopic level, while fluid models capture their macroscopic behaviour. Recent years have brought substantial progress on both sides: quantitative results on stable regimes in fluid, plasma and galactic models, including nonlinear Landau damping and the stability of plasma and galactic equilibria; the derivation of effective dynamics in quasineutral, mean-field and wave-kinetic limits; refined echo-chain analysis; and advances on Hilbert's sixth problem. The techniques involved draw on PDE theory, harmonic and functional analysis, probability, and mathematical physics, and increasingly reveal common structures linking kinetic, fluid and dispersive equations. This workshop brings together researchers from these areas to compare methods, consolidate the emerging unified perspective, and identify the central open problems.