In this paper, a new family of continuous distributions, called the modified odd Weibull-G (MOW-G) family, is studied. The MOW-G family has the feature to use the Weibull distribution as main generator and a new modification of the odd transformation, opening new horizon in terms of statistical modelling. Its main theoretical and practical aspects are explored. In particular, for the mathematical properties, we investigate some results in distribution, quantile function, skewness, kurtosis, moments, moment generating function, order statistics and entropy. For the statistical aspect, the maximum likelihood estimation method is used to estimate the model parameters. The performance of this method is evaluated by a Monte Carlo simulation study. Applications to three practical data sets are given to demonstrate the usefulness of the MOW-G model.