No. Allah is the name used in Islam to talk about God. God is the name in English, and by Christians used to talk about God. The real name of God can;t be said or pronounced, and is not written anywhere. In hebrew they use the hebrew equivalent of the letters YHVW, which some people rponounce as "Yahweh". Also, it is shortened to Yah, Yahu, or Yeho, which is whre the name Joushua comes from. Another name used in scripture is Elohim, and El Shaddai.
In the Koran, it is said, that there are 99 names for God. Allah is the first of the 99 names. Ar-Rahman is the next one, followed by Ar-Rahim, and so on.
See the source below for the remaining names. It is said that he who memorizes all 99 names will enter paradise.
Again, these describe the attributes of God, but not his real name.
To try and answer your question again, and better, in English, most people use the term "God" to mean the god Islam, Judaism, and Christianity. When you say Allah, they know that you mean God, but as seen through the eyes of Islam.
Muslims in the west use the name interchangeably, as the Koran says "our God is the same as your God".
Also, there are no english words similar to the name "Allah" in english. It is not confused to mean something different.
Christians and Jews would never use his name as Allah in their churches or temples though.