Convergence of technologies especially in nanotechnology, biotechnology, information technology, and cognitive science (NBIC) is a significant trend that can be seen in research projects, inventions, and finally, the production of new goods and services. This phenomenon first appears in research and consequently, in scientific publications. Iranian researchers have also followed this trend in research. This study is intended to identify and introduce bilateral or multilateral convergence of NBIC areas based on Iran's scientific publications indexed in Scopus. Convergence is underway with the keywords of four technological fields in the title of articles published from 2001 to 2015 and focused on four types of convergence including materials, techniques, applications, and tools. Accordingly, the greatest convergence is seen in the dual "Nano-Bio" combination and the least convergence in the triple combination of "Cogno-Bio-Nano". The results also show that the "Bio-Info-Nano" type of convergence has taken place in the forms of materials and techniques, in the "Bio-Cogno-Nano" composition as materials; in the "Cogno-Nano-Info" as applications; in the "Cogno-Nano" composition in the forms of materials and applications; in the "Nano-Bio" combination of materials; in the combination of "Nano-Information" as tools and techniques while in the "Cogno-Info" and "Bio-Info" combinations, it was as techniques. Finally, to strengthen the scientific and interdisciplinary co-operation to pave the way for achieving higher levels of convergence, suggestions have been proposed to science and technology policymakers.