Aron Jóhannsson (born November 10, 1990) is an American professional soccer player who plays as a striker for Úrvalsdeild club Valur.

Aron attracted attention from foreign clubs during his second full season for Fjölnir, moving to AGF Aarhus in late August 2010.

[11] On August 5, 2015, Aron underwent a medical and signed for Werder Bremen on a four-year deal, for a fee reported to be in the region of €5 million.

[12] Just ten days later, on August 15, he made his debut replacing Levin Öztunalı after 57 minutes in Werder's first match of the 2015–2016 Bundesliga season, a 0–3 home defeat to Schalke 04.

[13] He made his full debut a week later in a 1–1 draw away to Hertha Berlin on the second matchday of the season,[14] before scoring his first goal for Werder in his team's 2–1 defeat of Borussia Mönchengladbach on August 30, 2015, converting a penalty for 1–0.

In early October, Aron was diagnosed with a nerve irritation in his right hip which Werder Bremen announced they would treat "in a conservative manner" and which would keep him out of action for a minimum of three weeks.

After being expected to miss the beginning of the 2016–17 season as well,[21][22] Aron started in the opening match, a 6–0 defeat away to Bayern Munich, returning after an eleven-month layoff.

[27] After making two substitute appearances in February in defeats against Augsburg and Borussia Mönchengladbach, he did not feature in Werder's following four matches during which the team amassed ten points.

[33] On February 3, 2018, Aron was involved in two goals in Werder Bremen 2–1 win away to Schalke 04 after coming as a substitute,[34][35] This performance earned him a place in the starting lineup in the DFB-Pokal quarter-final match against Bayer Leverkusen three days later.

[47] Free agent Aron joined Ekstraklasa club Lech Poznań in February 2021, having agreed a contract until the end of 2021 with the option of an 18-month extension until summer 2023.

[49] Having picked up an arm injury in a reserve team's league game that would keep him sidelined for the rest of the year,[50] he left the club by mutual consent on the last day of the summer transfer window.

[52] After a string of good performances in the Danish Superliga in 2012, Aron received his first call-up to the Iceland squad on October 3, 2012, for the World Cup qualifiers against Switzerland and Albania.

[56] Aron made his first appearance for the United States in their 4–3 friendly victory over Bosnia and Herzegovina in Sarajevo the next day, coming on for Eddie Johnson in the 63rd minute.

[57] He was included on Klinsmann's 23-man squad for the 2014 FIFA World Cup, coming on for an injured Jozy Altidore in the 23rd minute of the opening game against Ghana for his tournament debut.

[citation needed] Aron was part of the American squad which came fourth at the 2015 CONCACAF Gold Cup, scoring their third goal in a 6–0 quarter-final win over Cuba in at the M&T Bank Stadium in Baltimore; set up by a 50-yard pass by captain Michael Bradley, he chipped goalkeeper Diosvelis Guerra from the edge of the penalty area.

[58] In March 2018, he was called up by interim coach Dave Sarachan for a friendly match against Paraguay but was forced to pull out due an injury.