Filip Cristian Jianu
Filip Cristian Jianu is a Romanian professional tennis player. He has a career-high ATP singles ranking of No. 210, achieved on 9 June 2025 and a best doubles ranking of No. 451, reached on 10 April 2023. He is currently the No. 1 singles player from Romania.
Jianu represents Romania at the Davis Cup.
Juniors
Jianu had good results as a junior player. He reached an ITF junior combined ranking of world No. 5 on 4 February 2019.Professional career
In November 2024, Jianu reached his second singles final for the season at the 2024 Brazzaville Challenger, where he lost to Gonzalo Oliveira.In March 2025, Jianu received a wildcard for his home tournament, the 2025 Țiriac Open, and recorded his first ATP Tour win over Nishesh Basavareddy in straight sets. He lost to Damir Džumhur in three sets.
ATP Challenger Tour finals
Singles: 3 (3 runner-ups)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score | ||||||||||||||
| Loss | 0–1 | [2023 Oeiras Indoors – Singles|] | Oeiras Indoors, Portugal | Challenger | Hard |  dts|Jun 2024ITF World Tennis Tour finalsSingles: 23 (14 titles, 9 runner-ups)
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dts|Aug 2019