The blast fungus Magnaporthe oryzae (syn. Pyricularia oryzae) is able to cause disease on more than 50 grass species, including important cereal crops such as rice, wheat and finger millet (Couch and Kohn 2002; Zhang et al. 2016). Understanding the evolutionary relationships between host-limited forms of the blast fungus is critical to being able to devise effective control strategies for the devastating diseases that they cause. For example, identifying host-specificity determinants may be valuable in identifying cognate disease resistance loci that could be deployed between different host species (Sweigard et al. 1995). This strategy has the capacity to lead to more durable disease control (Kawashima et al. 2016). Here, we present whole genome sequence information for a set of 60 Magnaporthe oryzae isolates collected between 1964 and 2017 from 14 countries and 5 different host plant species. Host grass species include rice (Oryza sativa), barley (Hordeum vulgare) wheat (Triticum aestivum), torpedo grass (Panicum repens) and Southern cutgrass (Leersia hexandra).