1978 Family Circle Cup

{{Use mdy dates|date=August 2023}}

{{TennisEventInfo|1978|Family Circle Cup|

| date=April 10–16

| edition=6th

| category=Colgate Series (AAA)

| prize_money=$125,000

| draw=32S / 16D

| surface=Clay / outdoor

| location=Hilton Head Island, U.S

| venue= Sea Pines Plantation

| champs={{flagicon|USA}} Chris Evert

| champd={{flagicon|USA}} Billie Jean King / {{flagicon|USA}} Martina Navratilova

}}

The 1978 Family Circle Cup was a women's tennis tournament played on outdoor clay courts at the Sea Pines Plantation on Hilton Head Island, South Carolina in the United States. The event was part of the AAA{{efn|name=aaa|Tournaments with prize money for the women of at least $100,000.}} category of the 1978 Colgate Series. It was the sixth edition of the tournament and was held from April 10 through April 16, 1978.{{cite book|title=Women's Tennis 1968–84: the Ultimate Guide|year=2011|publisher=Remous|pages=299–300|author=John Dolan}} Second-seeded Chris Evert won the singles title and earned $26,000 first-prize money.{{cite book|title=World of Tennis 1979 : a BP yearbook|year=1979|publisher=Macdonald and Jane's|location=London|isbn=978-0354090681|pages=139, 148–149|editor=John Barrett|editor-link=John Barrett (tennis)}}