This article examines the provisions of Nigerian trademark laws on comparative advertising. It criticizes the dichotomy between registrations under parts A and B of the register in this regard, and makes the case that the blanket prohibition of comparative advertising in respect of marks registered under part A is unnecessary and unjustified by requirements under international trademark standards. Such prohibition is further inimical to socioeconomic development, including the areas of consumer information, development of local businesses, and the general alignment of the country's intellectual property laws and practices with the underlying philosophy behind the World Intellectual Property Organization's Development Agenda. It concludes by making a case for law reform.