1942 National Challenge Cup

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

{{Infobox football tournament season

| title = National Challenge Cup

| year = 1942

| other_titles =

| image = Dewar trophy 1914.jpg

| image_size =

| caption = Dewar Challenge Cup

| country = United States

| dates = 25 December 1941 – 31 May 1942

| venue =

| num_teams =

| defending_champions = Pawtucket Rangers

| winners = Gallatin S.C.

| count =

| second = Pawtucket Rangers

| semifinal1 = Sparta

| semifinal2 = Philadelphia Americans

| continental_cup_title =

| continentalcup1_qualifiers =

| continentalcup2 =

| continentalcup2_qualifiers =

| matches =

| goals =

| attendance =

| scoring_leader =

| player_label =

| award =

| prev_season = 1941

| next_season = 1943

| updated =

| extra_information =

}}

The 1942 National Challenge Cup was the 29th edition of the United States Football Association's annual open cup. Today, the tournament is known as the Lamar Hunt U.S. Open Cup. Teams from the American Soccer League II competed in the tournament, based on qualification methods in their base region.

Gallatin F.C. from Gallatin, Pennsylvania won the tournament for first time defeating the defending champions, Pawtucket F.C. of Pawtucket, Rhode Island in the process.