The P in Pakistan (a majority Muslim country) arguably stands for Punjab,
From wikipedia:
> using it as an acronym .., and referring to the names of the five northern regions of the British Raj: Punjab, Afghania, Kashmir, Sindh, and Baluchistan.
That said, there are a non-trivial number of Sikhs in the area, at least one Sikh holy site is very near the Pakistan-India border in the Punjab region.