Bayesian Mortality Modelling with 'Stan' R package StanMoMo version 1.2.0 CRAN Task View: ActuarialScience (https://CRAN.R-project.org/view=ActuarialScience) Implementation of popular mortality models using the 'rstan' package, which provides the R interface to the 'Stan' C++ library for Bayesian estimation. The package supports well-known models proposed in the actuarial and demographic literature including the Lee-Carter (1992) <doi:10.1080/01621459.1992.10475265> and the Cairns-Blake-Dowd (2006) <doi:10.1111/j.1539-6975.2006.00195.x> models. By a simple call, the user inputs deaths and exposures and the package outputs the MCMC simulations for each parameter, the log likelihoods and predictions. Moreover, the package includes tools for model selection and Bayesian model averaging by leave future-out validation. Software Depends: R (>= 3.5.0) Imports: loo, methods, RcppParallel, Rcpp (>= 0.12.0), rstan (>= 2.26.0), rstantools (>= 2.0.0), tidyverse, dplyr, tibble, httr, bridgesampling, stats, utils, tidyselect, latex2exp, tidyr, ggplot2 LinkingTo: BH (>= 1.66.0), Rcpp (>= 0.12.0), RcppEigen (>= 0.3.3.3.0), rstan (>= 2.26.0), StanHeaders (>= 2.26.0), RcppParallel Suggests: knitr, rmarkdown, shinystan, Cairo Karim Barigou <karim290492@gmail.com> Comprehensive R Archive Network (CRAN) Karim Barigou [aut, cre] (ORCID: <https://orcid.org/0000-0003-3389-9596>), Pierre-Olivier Goffard [aut] (ORCID: <https://orcid.org/0000-0002-2667-6207>) GPL-3 2023-09-23 application/tgz https://CRAN.R-project.org/package=StanMoMo doi:10.32614/CRAN.package.StanMoMo