Abstrak
This research was conducted to examine the correlation between students' self-confidence and the speaking achievement at the eleventh grade students of SMKN 1 Tarakan. This is a quantitative research with a correlational design. The population was the eleventh grade students. Using a simple random sampling technique, 85 out of 431 students in the eleventh grade were taken as the research sample. The data were collected using a questionnaire, and the students' speaking achievement were taken from the English subject teacher assessment documents in the first semester of the 2020/2021 school year. The data were analyzed statistically using the Pearson Product Moment with the help of SSS version 22.00, the results showed that there was a significant correlation between self-confidence and speaking ability scores of students as indicated by a significant value (, 000 0, 05) and a value r calculated is greater than the critical value (0.730> 0.210)