Nathalia Pinheiro Felipe Martins, known professionally as Nathalia Kaur, is a Brazilian model and actress who works in Indian cinema.

The Kingfisher Calendar was an annual calendar featuring models in swimsuits published by the Indian conglomerate United Breweries Group for 19 years from 2003 to 2021. Described by Rediff as "arguably the most prestigious [modelling assignment] in India", it was credited with advancing the careers of models and actresses like Katrina Kaif, Deepika Padukone, Yana Gupta, Sonali Raut, Ujjwala Raut, Nargis Fakhri, Bruna Abdullah, Deepti Gujral, Lisa Haydon, Aishwarya Sushmita and Angela Jonsson. Photographer Atul Kasbekar has been associated with the calendar since its inception in 2003 till its final issue in 2021. Kasbekar along with Vijay Mallya are credited with the idea of creating the annual Kingfisher Calendar.