Trenda is of American origin and means "to go forward, to advance". It is a unisex name but was more popular for girls during the mid-20th century. Trenda's popularity peaked in the United States in 1958 when it ranked #764 on the Social Security Administration's list of most popular baby names.
The name Trenda saw its popularity peak between 1964 and 1965 with a significant jump from 29 to 44 births respectively. However, it's interesting to note that the name didn't disappear entirely even in years where there was only one birth recorded (1984). The total number of births over these years is 673.