This paper aims to summarize the generalizability of leadership competencies published in field of leadership. This present study used the Leadership Competencies Model of Çitaku et al. (2012), which has investigated six most developed western countries (Austria (A), Germany (D), Switzerland (CH), United States of America (USA), Canada (CA) and United Kingdom (UK)) to find out leadership competencies for efficient leaders. We randomly selected 25 leadership competencies using the Research Randomizer tool and systematically researched on Google Scholar, how many times occur leadership competencies, published between the 2010 and 2020. The analysis of the related literature was conducted by employing a bibliometric analysis of the research on the Google Scholar database between 2010 and 2020. The results of present study showed that there is an outstanding interest in our randomly chosen leadership competences and that these 25 competencies can be applied in any leadership domain. The study brought out 25 important leadership competencies incorporated in seven important domains, resulting with leadership competencies model named DRENICA, which is scientifically robust and can be used in leadership training courses and programs, in all leadership domains. The study concluded that 25 randomly chosen leadership competencies are robust, generalized and can be used in any leadership domain. Future research should be designed to replicate, extend and confirm the present findings. Meanwhile, we have provided a “Leadership Competency Model-Drenica” that can be employed to teach and further investigate leadership competences.