No, not the being, deity, concept, or whatever you call God, but the name itself, especially in interfaith discourse or when speaking to the non-religious.
I've seen "God" (note the capitalization rendering the word a proper noun) used to describe everything from a personal deity, to a creator, to an underlying substratum for reality, to existence itself, and many things between. Yet people use the word even when their religion or culture has another name for it.
An example off the top of my head is Ramakrishna apparently referring to Nirguna Brahman as "God" in The Gospel of Sri Ramakrishna. Of course, what he means is understood by Vedantins and probably most Hindus, but the meaning of the term is likely lost on people outside of this subset.
What does "God" refer to in your religion or culture?
Do you agree that use of the term is problematic outside of your own religion or culture? If not, how do you reconcile the differences? If so, what do you think can be done to communicate what is being referred to in interfaith dialogue or conversations with the non-religious?