Louisiana State Route 7 had multiple suffixed routes, designating bypassed alignments of the highway. They are listed below in order from west to east.
Louisiana State Route 7-D (LA 7-D) spanned from west to east and was known as Yoakum Street and Kennedy Road. It served as the older alignment of LA 7 through Elton.
Louisiana State Route 7-E (LA 7-E) spanned from west to east and was known as Summer Road. It served as the older alignment of LA 7 near Lawtell.
Louisiana State Route 7-H (LA 7-H) spanned from west to east. It served as the older alignment of LA 7 near Opelousas.
Louisiana State Route 7-D (LA 7-D) spanned from west to east. It served as the older alignment of LA 7 east of Krotz Springs, being bypassed by a newer alignment through the Morganza Spillway. It last appeared on maps in 1944.
Louisiana State Route 7-D (LA 7-D) spanned from west to east and was known as Old Hammond Highway. It served as the older alignment of LA 7 through Baton Rouge, being bypassed by the newer Florida Boulevard project. The road is still known as Old Hammond Highway to this day.
Louisiana State Route 7-E (LA 7-E) spanned from west to east through the town of Denham Springs. It served as the older alignment of LA 7.
Louisiana State Route 7-F (LA 7-F) spanned from west to east through the town of Walker. It served as the older alignment of LA 7.
Louisiana State Route 7-E (LA 7-E) spanned from west to east to connect LA 7 with the city of Hammond. It served as the older alignment of LA 7 for the most part, with LA 366 picking up another old segment.
Louisiana State Route 7-E (LA 7-E) spanned from west to east from the town of Hammond to the community of Robert. It served as the older alignment of LA 7.