Background. Testicular cancer is a malignant tumor of the testicles, the male reproductive organs that produce sperm and testosterone. It is one of the most common cancers in young men. This form of cancer can be easily diagnosed by self-examination of testicles and is curable if detected early. Periodic self-examination must be performed for early detection. Due to lack of knowledge on testicular cancer and testicular self-examination techniques, patients can potentially miss early detection. This study is aimed at assessing the knowledge, attitude, and practice regarding testicular cancer and testicular self-examination among male college students pursuing a Bachelor’s degree. Methods. A web-based cross-sectional analytical study was adopted to assess the knowledge, attitude, and practice of testicular cancer and testicular self-examination among male college students pursuing a Bachelor’s degree and living in Bharatpur Metropolitan City in the Chitwan District of Nepal. The snowball sampling technique was employed to identify the eligible participants. Collected data were entered in SPSS version 22 and analyzed by using the Chi-square test, Pearson’s correlation, and binary logistic regression. Results. Out of 402 respondents, majority (56.7%) had poor knowledge regarding testicular cancer and testicular self-examination and only 11.4% had performed testicular self-examination. The majority (67.2%) of the respondents had shown an unfavorable attitude towards testicular cancer (TC) and testicular self-examination (TSE). There was a significant association between the level of knowledge and marital status 4.516 (1.962-10.397) and ethnicity 2.606 (1.443-4.709). Likewise, age 0.396 (0.191-0.821) and marital status 0.347 (0.156-0.775) have been significantly associated with testicular self-examination practice. Regarding favorable attitude, age 0.362 (0.186-0.706) and sources of information from mass media 2.346 (1.328-4.143) have been associated significantly. Conclusion. The study finding shows that the knowledge on testicular cancer and testicular self-examination was low. Due to lack of knowledge and trainings, the potential opportunities for early detection of testicular cancer are missed substantially. Periodic testicular self-examination is vital for early detection of testicular cancer. Hence, it is crucial to implement massive educational campaigns and trainings on testicular cancer and testicular self-examination techniques among young male groups.