Students at universities now routinely participate in online learning (OL), which has become the new standard. More recent research and attention are needed to understand the issue of their participation and motivation. Therefore, this study was conducted to investigate to what extent university students were engaged and motivated in OL mathematics classes at a selected public university in Malaysia. A quantitative approach with a correlational research design was used in this study. A series of survey questions were adapted from an earlier investigation. It was distributed to 169 mathematics education students. Both descriptive and inferential analyses were performed on the data that had been gathered. The findings demonstrated that university students were highly motivated and engaged in their mathematics classes. The findings also showed a moderately positive correlation between student motivation and involvement in a mathematics class. Further research is suggested to examine any causative relationship factors and to observe the nature of student engagement and motivation in a mathematics lesson.