How can I get Bahamas visa from Nigeria. I am a citizen of Nigeria?

As a Nigerian passport holder, you will need a visa, valid passport and a return ticket. You may wish to search the attached url for confirmation. I suggest that you apply to the UK High Commission for assistance in obtaining a visa. Alternatively, if you are stopping over in the UK or the US, you may be able to go directly to the Bahamas High Commission in London or the Bahamas embassy/mission in NY, DC or Miami and apply for one. Hope this helps. Do understand, however, that no country guarantees that every applicant will be granted a visa upon application.